Solve Quadratics - Square Root Method

3x² = 12 (a)  

• ± 2
• 2
• ± √12
• ± 4

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

Tags

CCSS.8.EE.A.2

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9
• b = 3, b = -3
• b = 8, b = -8
• no solution

Tags

CCSS.HSA-REI.B.4B

• x = 3  or   x = -3

• no solutions

• x = 6 or x = -6

• x = 3

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.8.EE.A.2

Draw a picture of Mr. Luczak's favorite animal

Solve by taking square roots:
5m² + 1 = 6

• m = 0
• m = 1 or -1
• m = √7
• m = 7/5 m = -7/5

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9
• b = 3, b = -3
• b = 8, b = -8
• no solutionb

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

• x = 3  or   x = -3

• no solutions

• x = 6 or x = -6

• x = 3

Tags

CCSS.HSA-REI.B.4B