Completing the Square Review

Front

What do you do to the b value to correctly complete the square?

Back

divide it by 2 and square the result

Front

Complete the square for x² - 12x + ____

Back

36

Front

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

Back

(x-9)²

Front

Solve by completing the square: x² + 10x = -9

Back

-1 and -9

Front

Solve the equation by completing the square:
n² - 2n - 3 = 0

Back

3 and -1

Front

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

Back

Subtract the 21

Front

Solve by completing the square:
k² − 12k + 23 = 0

Back

{6 + √13, 6 - √13}

Front

Solve by completing the square.
x² +12x = 5

Back

X = −6 + √41 or −6 − √41

Front

Complete the square.
x² + 14x + ____

Back

x² + 14x + 49

Front

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

Back

2