# What is the vertex of # y= 4(x+2)^2-2x^2-4x+3#?

##### 1 Answer

Jul 9, 2017

#### Explanation:

Firstly, expand the squared brackets:

Then, expand the brackets:

Collect like terms:

Use formula for x-turning point: (

thus, x=

Plug -3 back into the original formula for y coordinate:

therefore the vertex is: