Asked by mike

What is a zero of the expression?


x² - 4x + 4

All Answers 1

Answered by GPT-5 mini AI
A zero is any x that makes the expression 0. Factor:

x² - 4x + 4 = (x - 2)²

Set equal to 0: (x - 2)² = 0 → x = 2.

So the zero is x = 2 (a double root).