# Thread: how will i solve this question ?

1. ## how will i solve this question ?

hi, how can I solve this question using the formula a(x+h)+k
f(x)=2x^2+x+1

I tried soo much, but I just couldn't solve it.

2. ## Re: how will i solve this question ?

Originally Posted by melody99
hi, how can I solve this question using the formula a(x+h)+k
f(x)=2x^2+x+1

I tried soo much, but I just couldn't solve it.
I think you mean $a(x+h)^2 + k$, yes?

$2x^2 + x + 1 =$

$2 \left(x^2 + \dfrac x 2 + \dfrac 1 2\right) =$

$2 \left(\left(x+\dfrac 1 4\right)^2 - \dfrac {1}{16}+\dfrac{1}{2}\right)$

$2\left(x+\dfrac 1 4\right)^2 +\dfrac 7 8$

3. ## Re: how will i solve this question ?

@melody99 ... in future, post algebra problems in the algebra forum.

forum rules ... #13