Completing the Square

Front

x² + 16x + _

Back

64

Front

First step to solve by completing the square: a² + 10a + 21 = 0

Back

Subtract the 21

Front

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

Back

2

Front

When do you use the plus or minus symbol (±)?

Back

After taking the square root of both sides

Front

What is one of the solutions to this equation?
(2x - 1)² = 49

Back

-3

Front

Complete the square: x² + 6x + ____

Back

9

Front

Given the perfect square trinomial, identify the equivalent expression: x²-18x+81

Back

(x-9)²

Front

Given the perfect square trinomial, identify the equivalent expression: x²+14x+49

Back

(x+7)²

Front

Is x² + 18x + 9 a perfect square trinomial?

Back

No

Front

Is this a perfect square trinomial?
x² + 10x + 25

Back

Yes