Write The Equation Of The Parabola In Vertex Form - Now expand the square and simplify. \ [\begin {align*} (x+4)^ {2} &= (x+4) (x+4) \\ &=x (x+4)+4 (x+4) \\ &=x^ {2}+4 x+4 x+16. We could proceed as follows. Web 10 years ago. You should get y = a.
Web 10 years ago. \ [\begin {align*} (x+4)^ {2} &= (x+4) (x+4) \\ &=x (x+4)+4 (x+4) \\ &=x^ {2}+4 x+4 x+16. Now expand the square and simplify. You should get y = a. We could proceed as follows.