Question

What is the value of h in this equation?

h = ________

Answer 1

2

Explanation:

The constant -h is half the x-coefficient -4, so is -2. That makes h = 2.

The square of the binomial (x-h) is ...

... (x -h)² = x² -2hx +h²

Comparing x-terms, you see that ...

... -2xh ≡ -4x

... h = (-4x)/(-2x) = 2