# What is the vertex form of #y= 5x^2 + 5x -12 #?

##### 1 Answer

Mar 5, 2018

#### Explanation:

take 5 as a common factor from the first two terms

completing square

for completing square you take half the coefficient of x and square it

and we subtract 5/4 because from completing square we get 1/4 so 1/4 times 5 is 5/4 because it is positive inside it must be negative then

from the law

the vertex is =