Solving Equations by Completing the Square

Front

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

Back

Subtract the 21

Front

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

Back

{3 and -1}

Front

Complete the Square: x² + 6x - 5

Back

(x + 3)² = 14

Front

Convert to vertex form: Options: y=3(x+1)² - 8, y=3(x-1)² - 8, y=3(x+2)² - 8, y=3(x-2)² - 8

Back

y=3(x+1)² - 8

Front

Convert to vertex form: y=-2(x+12)² - 67, y=-2(x-12)² - 67, y=-2(x-6)² - 67, y=-2(x+6)² - 67

Back

y=-2(x-6)² - 67

Front

Which of the following equations shows the vertex form of a quadratic? Options: x = -b/2a, x = (-b ±√b² - 4ac)/2a, y = ax² + bx + c, y = a(x - h)² + k

Back

y = a(x - h)² + k

Front

Complete the square for
x² + 12x + ____

Back

x² + 12x + 36

Front

Complete the square.
x² + 6x + ____

Back

x² + 6x + 9

Front

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

Back

2

Front

Complete the Square
x² + 6x = 5

Back

(x + 3)² = 14