Solving Quadratic Equation Using Square Roots

x² = 16

• ± 4
• ± 8
• 4
• 8

Tags

CCSS.8.EE.A.2

x² + 4 = 68

• ± 8
• ± √8
• 8
• ± 64

Tags

CCSS.8.EE.A.2

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

Tags

CCSS.8.EE.A.2

Solve
(x-5)² = 25

• ±0
• ±10
• 10, 0
• -10, 0

Tags

CCSS.HSA-REI.B.4B

Solve

(x+3)²-5 = 20

• -8 and 2

• 5 and -5

• 8 and -2

• 20

Tags

CCSS.8.EE.A.2

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

3( x+3 )² = 27

• x = 3, x = -3

• x = 0

• x = 6, x = 0

• x = 0, x = -6

Tags

CCSS.HSA-REI.B.4B

x² = 25

• x = -5

• x = 5i, x = -5i

• x = 5

• x = 5, x = -5

Tags

CCSS.8.EE.A.2

• {12,-12}

• No Solution

• {16,-16}

• {34.06,-34.06}

Tags

CCSS.8.EE.A.2

• {6.78,-6.78}

• {8,-8}

• {7,-7}

• No Solution

Tags

CCSS.8.EE.A.2