Completing the Square Basics

Front

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

Back

Subtract the 21

Front

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

Back

(x+7)²

Front

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

Back

(x-9)²

Front

To solve by completing the square, what is the first step? x² = 9 - 4x

Back

add 4x to both sides

Front

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

Back

{6 + √13, 6 - √13}

Front

Complete the Square
x² + 6x = 5

Back

(x + 3)² = 14

Front

Solve the quadratic equation by completing the square: x² + 4x - 35 = 5

Back

Front

Back