Question

Convert the equation to standard form:
f(x) = 2(x - 1)(x + 4)

Answer 1

2x^2 - 10x - 8.

Explanation:

f(x) = 2(x - 1)(x + 4)

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

= 2(x^2 - 5x - 4)

= 2x^2 - 10x - 8.