Solving Quadratics using Square Roots MC#2

x² = 16

• ± 4
• ± 8
• 4
• 8

Tags

CCSS.8.EE.A.2

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

Tags

CCSS.8.EE.A.2

x² + 4 = 68

• ± 8
• ± √8
• 8
• ± 64

Tags

CCSS.8.EE.A.2

Solve by taking square roots:

3 + r² = 12

• r = $\pm\sqrt{12}$ - 3
  

• r = 3, r = - 3

• r = -3

• r = 3

Tags

CCSS.HSA-REI.B.4B

3 (x - 2)² + 4 = 79

• x = 3, x = 7

• x = -3, x = 7

• x = $\pm\sqrt{\frac{87}{3}}$
  

• x = $\pm\frac{\sqrt{39}}{3}$
  

Tags

CCSS.8.EE.A.2