# How do I convert #f (x) = -2x^2 + 2x + 4# to standard form ?

##
I understand how to complete the square, but this leaves me with (-2x + 4) (x+1). I thought I needed to have a perfect square ?

I understand how to complete the square, but this leaves me with (-2x + 4) (x+1). I thought I needed to have a perfect square ?

##### 1 Answer

Nov 26, 2016

#### Explanation:

Given f(x)= y=

=

=

=

=