Solving Quadratics

Solve for x by taking square roots.

-9p² = -576

• x = 8

• x = 64

• x = 8, -8

• x = 64, -64

Tags

CCSS.HSA-REI.B.4B

Solve for x by taking square roots.

6x² - 9 = 87

• x = 4, -4

• x = 4

• x = 16

• x = 16, -16

Tags

CCSS.8.EE.A.2

Solve for m by taking square roots.

4m² + 10 = 38

• m = 7, -7

• m = 7

• m = √7

• m = √7, -√7

Tags

CCSS.8.EE.A.2

Solve by taking square roots:

-n² = -33

• √33

• no solution

• 3√11

• -√33

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
3 + 9r² = 12

• r = 0
• no solution
• r = 3, r = -3
• r = 1, r = -1

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
a² + 9 = 9

• no solution
• a = 0
• a = 3 or -3
• a = 18

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots.

4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² + 3x - 18 = 0

• x = -3 and x = 6
• x = 3 and x = -6
• x = -9 and x = 2
• x = 9 and x = -2

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

x² + 15x + 44 = 0

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}

Tags

CCSS.HSA-REI.B.4B