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Vertex form equation to standard form?

Mathematics
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\[y=5(x+3)^2-36\]
  • hba
Sure...

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Other answers:

  • hba
The vertex form is represented as \[ y= a(x-h)²+k\]
  • hba
Lets see your question \[y=5(x+3)^2-36\] we know that (a+b)^2 = a^2+2ab+b^2 Now Please Use this formula and tell me what you get ?
sure, just a minute
  • hba
Your standard form will look like, \[y = ax² + bx + c\]
I don't have a b?
  • hba
Just show me what you got ?
if u solve u will get b
solving now
  • hba
ok
solve
i got 0 = 10b... @_@ maybe i did something wrong
abba what emmah u did:P
  • hba
Lets see your question y=5(x+3)^2−36 we know that (a+b)^2 = a^2+2ab+b^2 Now Please Use this formula and tell me what you get ? Just do this step and tell me.
  • hba
Just apply the formula.....
I got 0 = 10b, or b=0.....
  • hba
No let me show you wait
okay
just use ur mind emmah hba wait she will try
  • hba
Just consider your question is (x+3)^2 according to formula (a+b)^2=a^2+2ab+b^2 here a =x and b=3 now just replace them
can i say answer hba
  • hba
noooo
atleast she gets clarity
don't say the answer, if i don't try i'll never get it lol
  • hba
Just try what i told you to do.
okay
  • hba
Because you are not good with basic algebra.
  • hba
Maybe i can put down a tutorial later on for you.
sh is good but mind is diverted now
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If you have time.
I am good with basic algebra... i just don't understand what you're saying. I can do standard form to vertex form perfectly, but this is a little bit harder for me
  • hba
You don't know how to apply a formula ?
sigh... no, i applied the formula and it worked out. a = 5 and b = 3
  • hba
Let me show you an example (x+4)^2=x^2+2(x)(4)+4^2 =x^2+8x+16
  • hba
Now just apply (x+3)^2
  • hba
@shaik0124 Yaar tum iss ko ye solve karne do phir is equation mai dalwa daina.
  • hba
Samjhe ?
x^2+6x+9 u will get hba right
  • hba
Direct answer mat daina warna ban krdunga @shaik0124
(x+3)^2 = 64
ok
YAAR BAN KAISE KARTHE HAIN
?_?
  • hba
@Emmy82650 I got (x+4)^2=x^2+8x+167 and you got (x+3)^2=64 , Are you serious ?
HAHA
.... Well, i think we're done here.
  • hba
@Emmy82650 If you can come here after 2 hours i am putting down a tutorial for you,understood.
no thank you
  • hba
Maths is the easiest subject and you are failing badly to understand.
  • hba
My tutorials are for all so even if you don't want it others will benefit.
i will find another way to learn it. I don't feel like dealing with rude people at the moment. and yes, i understand math. I am taking am algebra 2 gifted honors course
emmah can i help u
no thank you..
ok nice
|dw:1353593622282:dw|
is that a 62? a little hard to read
6x
so y= 5(x^2 +9+6x) - 36?
yes
now multiply with 5 in rhside and solve
in rhside?
right hand side
that doesn't make sense, that's not what the formula would come to in the end
emmy would you still like help
yes please, if you can give it
You have \[\left( x+3 \right)^{2}\] This means \[\left( x+3 \right)\left( x+3 \right)\] Do you know how to expand this?
skae give answer directly bcoz she doesn't
Im not asking you shaik
|dw:1353594458544:dw|
skae everything was explained to her see above comments
(x+3)^2?
dont make time pass here emmy b serious
(x+3)(x+3)?
@shaik0124 UGH i'm being serious! the equation didn't show up right on my computer,idk if it did for yours but it looks jumbled on mine! If you don't want to help you can just click on another question and leave me alone PLEASE.
yes (x+3)(x+3)
okay, where do i go from there?
Do you know how to expand something like 2(x+3)
2(x+3) = 2x + 6 (x+3)(x+3) is the same concept but now you have 2 terms instead of 2 You get 3 terms: x*x, x*3, 3*x, 3*3 (x+3)(x+3) = x^2 + 9 + 3x + 3x
okay i understand that somewhat
so for this problem it's 5(x+3)^2 (5x+15)^2? (5x+15)(5x+15) = 5x^2 + 225 + 75x + 75x? 5x^2 + 225 + 150x?
No you have to expand the (x+3)^2 first before multiplying by 5 (x+3)^2 = ?
ohhh sorry. so: (x+3)(x+3) = x^2 + 9 + 9x and then multiply by five
uhm 5x^2 + 45 + 45x
You get X^2, 9, 3x and 3x from the expansion What is 3x + 3x? x^2 + 9 + 3x + 3x = x^2 + 9 + 6x
crap i messed up again... 5x^2 + 30x + 45
yup thats right now minus 36 What is the final answer?
5x^2 + 30x + 9
good job
Thats of the form \[y= ax^{2} + bx + c\] where a=5, b=30 and c=9
thank you so much, i finally understand! :)
no problem :)

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