Question

Express the function.
f(x) = 2x² - 4x - 13
in the form f(x) = a(x + h)² + k​

Answer 1

2(x-1)^2-15

Explanation:

2x^2-4x=2(x-1)^2-2

insert that in:

f(x)=2(x-1)^2-2-13=2(x-1)^2-15

a=2,h=-1,k=-15