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anonymous
 5 years ago
5x^25=120 ? please help (5x to the second power minus 5 equals 120)
anonymous
 5 years ago
5x^25=120 ? please help (5x to the second power minus 5 equals 120)

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0well i think u mean (5x)^2 as apposed to 5x^2 so then u get (5x)^2 =125 when u add 5 to both sides. so then square 5x giving u 25x^2 = 125. divide both sides and u get x = square root of 5

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0if u mean 5x^2 u get x = 5 as amistre said

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[5x^2  5 = 120 \]\[\implies 5x^2 = 120 + 5\] \[\implies x^2 = 25\] \[\implies x = \pm 5\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0is that all i do ? it says solve each equation by using square root .man i guess you are right .! i have more too ! please keep helping me

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well, write the next one and see how much you can do on your own.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i dont know what to do !! :( im trying though 6r^2+5v=10

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well what are you supposed to be solving for?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i am supposed to solve the equation with the quadratic formula

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I don't understand though you have 2 variables there, v and r.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0it must have been a misprint. we can just use 1 variable. v? so whats my first step?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well, what is the form you need for the quadratic formula?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Right. So make the equation you have look like that.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(ax2+bx+c=0) 6x2=5=0?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no thats not it !! uhm im sorry i am wasting your time.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Wait, what's the equation you started with?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Are there really parentheses there?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no , i just dont know how to square it on here

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh, ok. So if you subtract a 10 from both sides wont the left side equal 0?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so it would be something like ... 6v^2+5v10=0 ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0It would be exactly like that. So what is a, b, and c?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0a = 6v or 6 ? b = 5 c= 10

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well, the standard form is ax^2 + bx + c, so the a would just be 6. It's the coefficient in front of the x^2 (or in this case v^2) term.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ooooo , ok i think im starting to get this a little more. so what do i need to do next in this equation ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well, given the new form we have here.. You just plug in your a, b and c to the quadratic equation to find what x is. \[ax^2 + bx + c =0 \implies x = \frac{b \pm \sqrt{b^24ac}}{2a}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0=( im going to fail this algebra 2 class !!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0No. You're doing very very well. Have you been taught the quadratic equation?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea we have but i was really sick and my teacher has not helped me really .

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok, well that is what it is. If you have something in the form \[ax^2 + bx + c = 0\] you can find what x equals by plugging in a, b, and c into that equation.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0My algebra2 teacher taught it to us using a song.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0x= 5+ the square root 5^24(6)(10)  _____________________________________ 2(6)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lol sorry for the huge spaces. i tried though . and how does the song go ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0It's to the tune of jingle bells. Quadratic equations / Dashing through the snow often make you cry. / in a one horse open sleigh But now there is a way / or' the fields we go to wave your tears bye bye. / laughing all the way Don't need to factor now. / Bells on bobtails ring Don't need complete the square. / making spirits bright Just one simple forumla this secret I will share. Oh x equals / Jingle bells minus b / Jingle bells plus or minus square root of / Jingle all the way b squared minus 4ac / oh what fun it is to ride all divided by 2a! / in a one horse open sleigh.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0omg !!! ok can i please use this song , i would love to write it down and use this, we have a test thursday and this could help me extremly considering the fact i love to sing !!!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0In anycase, it helps to take the square root part first. The part in the square root is called the discriminant. Then you can take the square root of the discriminant and add and subtract it from the b to give you your two values for x.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yes of course you can use it ;p

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you are a life saver ! &'d you are extremely smart at this lol i know this is besides the point but how old are you genius ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Heh.. I'm 33. I found this video of people singing it. Theres a lot of other videos of the quadratic forumula sung to many different songs, but this is the only one I could find for jinglebells. Anyway, hope it helps. http://www.youtube.com/watch?v=CnJT1ojHT28&feature=related

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lol it will ! are you on here all the time ? i will most likely start getting on here daily with this work. that is if i dont have to work .

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm on pretty often yeah =)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Or you can always find me a gmail if I'm not online.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0well i really hope each time i get on i can find you...im new to this lol i just made me a membership once my question was on here. i dont know how to really work this sight

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0my email is selenadowns@yahoo.com or i have a facebook lol just saying

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i meant selenadowns73@yahoo.com

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok well feel free to drop me a line if you have questions, or you can post them here and someone will no doubt answer eventually =)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0one more question before i log off &'d head to work what are the steps to quadratic systems ? the next problem is y=x^23x+10 y=x+5

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well. If y = x+5 and y = \(x^2  3x + 10\) Then can't you set those two right hand parts equal to eachother?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0huh ? sweetie you lost me lol set what &'d what equal to eachother ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0When working with a system, you're finding solutions that satisfy both equations. So the x from one equals the x from the other, and same for the y.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So if y = x+5 and y = \(x^2  3x + 10\) then you have \(x+5 = y = x^2  3x + 10\)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So you can get rid of the y.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0and you're left with \(x+5 = x^2  3x + 10\)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0o :/ what am i doing wrong ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You did it right. I forgot the negative sign on the \(x^2\) term

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Then just solve the same way we did the last one. move everything over so you have a 0 on one side and ax^2 + bx + c on the other.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0from what i had... i subtract the x5 on both sides? x^24x+5=0 0=x^2+4x5 ????????????

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yep. Either of those two will work (and give the same result)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(x+5)(x1) x=5 x=1 y=5+5 y=1+5 y+0 y=6 (5,0) (1,6)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0HOLD ON IM VERY MAD!!!! i just had a moment........that problem i just did were my notes that were already done . lol wow im stupid

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0It's still good practice!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i got all excited because i thought i comprehended

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i really hope that in the future i marry someone who has mathmatic potential as yourself because if not i dont know what i will do lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Heh.. you're doing really well actually!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thanks sweetie. well i am off to work. hopefully i get your help soon. email me asap . i get them to my phone . i will really need more help when i get off work

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i will check my phone then . well bye =) thank you SOOOOOOOOOOOOOOO MUCH
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