Question

What is f(x) = 8x² + 4x written in vertex form?

F(x) = 8x + - 1.

f(x) = 8√(x + 1)² - 1/6

f(x) = 8√x+¹²-2

f(x) = 8(x + 1)² - 4

Answer 1

`8x^(2)+4x\\\\=8\left(x^(2)+(1)/(2)x \right)\\\\=8\left(x+(1)/(4) \right)^(2)-8\left((1)/(16) \right)\\\\\boxed{f(x)=8\left(x+(1)/(4) \right)^(2)-(1)/(2)}`