Solving Quadratics with the Square Root 2

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

Tags

CCSS.8.EE.A.2

 x² - 81 = 0

• x = 11, -11
• x =±9
• x = 7, -7
• x=±9i

Tags

CCSS.HSA-REI.B.4B

Solve using square roots.

• ±81
• ±9
• ±3
• No real solution

Tags

CCSS.8.EE.A.2

Solve by taking square roots:
k² - 6 = 43

• k = √37
• k = 37 or - 37
• k = 7, k = -7
• no solution

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 solution

Tags

CCSS.HSA-REI.B.4B