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anonymous
 5 years ago
3x^2 +8x + 5
factoring trinomials
PLEASE HELP
anonymous
 5 years ago
3x^2 +8x + 5 factoring trinomials PLEASE HELP

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0alright, let's factor : \[(3x + 5)(x + 1) = 0\] use the FOIL method to check your answer ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how do you figure them out so easy

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0exactly lol ^_^ , practice makes perfect :) Believe me, I was so bad at these lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0class hasnt helped me lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0class won't help, it just introduces the concept, only you can help yourself :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0it helps when 3 and 5 make 8 right in front of you tho, but it takes practice to notice it ...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0i use the first and last numbers, and the signs of the middle and last numbers to figure alot of it out....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i have the test tomarrow so we'l see

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0there are some underlying concepts to be aware of that help.... like how the equation is constructed to begine with and that way you can more easily tear it apart

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so on this next one 5w^2 + 13w  6

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you're going to do great ^_^

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.05(6) = 30... the last signis negative so the signs are different and its subtraction.... the middle number is positive so the largest factor is the positive...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0(w+/5)(w/5) is my setup...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.01,30; 2,15, 3,5 153=13 use it

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0(w+15/5)(w2/5) simplify and shift

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so what the first and last multipy out to the middle needs to add up to that number

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0want me to go slower :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the first number is used to "calibrate" the rest. does that make sense?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ok... the last number is used with the first number to find a "pool" of options for our middle number... does that make sense?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.05(6) = 30...what are our options...all of them...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0yes, what are they so we can see them :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0start with the obvious..1,30; and move on

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0thats good, lets keep those available while we "setup" our answer

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the last number is gotten by multiplication right? so the sign of that number tells us alot of what we need to use

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if the sign is () what are our options?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0well get to that... but for now, focus on the sign only and not the value of the number... our set up is this: ( w ) (w ) we need some signs....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0good job.... now look at the middle number and that tells you which number is bigger... does that make sense?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0whats the middle sign? + or ?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0that middle number is +13 right?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0then we want our "bigger" numbe that we use to be (+) (w + B )(w  L ) got it?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0now which factor do we see that will subtract to get 13?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0good (w +15 )(w 2 ) couple more loose ends to wrap up we used that "5" from the front to begin with and so we need to divide it out in this step like this: (w +15/5 )(w 2/5 ) makes sense?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0simplify those fractions and if they still look like a fraction... move the bottom in front of its x partner like this: (w +3 )(w 2/5 ) cant reduce anymore so move the denoms if there is any: (w +3 )(5w 2) and were done

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thank you so much our teacher goes to fast

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0lets do another one so I can see you do it :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if it cant be done like this...use the quadratic formula :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0find the factors of 40?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0close, first time last for a pool

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0use that first now so we can divide it later... whats our pool?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh ya...let me write this down

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0no writing...must do it the hard way :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0what are our "factors" of 80 to choose from?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.01,80; 2,40; 4, 10; 8, 5

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.08 and 10 lol forgot how to multiply

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.01,80; 2,40; 4,20; 8,10; 16; 5 thats better

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0lets start setup.... 2x^22x40 (x )(x ) we need signs...what are they?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0both () meaning? that ()()=()?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the last number sign tells us we need to multiply some signs to get it....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0good, and the middle tells us which is begger right?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0or bigger depending on your accent :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0(x B )(x+L ) we good so far? you writin this down?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.02x^22x40 what numbers from our pool will give us 2?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0good. lets fill them in (x10 )(x+8 ) now divide out the first number that "2" we used (x10/2)(x+8/2) now what?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0thats right.... but let me check our work a second....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0one little after thought that usually doesnt come up is this..... we could have factored out a "2" to begin with.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0yep.... so we actually need to put it back in like this: 2(x5)(x+4) to make everything right again :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0now this will work back into the original :) you tried to trick me didnt you :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thanks..you helped alot

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0youre welcome.... hope you do good :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0il get on toarrow night and let you know if your here my class is at 8am

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.08am eh... is that florida time?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ahh.... your 2 or 3 hours behind me then

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0:) library is closing here at my college.... so have fun :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok im off to bed thanks again
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