9-4 Solving Quadratics with Square Roots

 x² - 81 = 0

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

Tags

TEKS.MATH.A.8A

-6x² = -150

• +25, -25

• +5, -5

• no solution

• +165, -165

Tags

TEKS.MATH.8.2B

x² - 64 = 0

• +64, -64

• no solution

• +8, -8

• +16, -16

Tags

TEKS.MATH.A.8A

x² + 17 = 13

• +2, -2

• +4, -4

• no solution

• +20, -20

Tags

TEKS.MATH.8.2B

What are the roots of this quadratic function?

• -4 and 0

• 4 and 0

• -2 and 4

• 0

Tags

TEKS.MATH.2A.4F

TEKS.MATH.P.5J

Tags

TEKS.MATH.A.8A

• 26

Tags

TEKS.MATH.8.2B

Tags

TEKS.MATH.A.8A

(x + 4)² = 36

• 2 and -10

• 2 and 8

• 2 and - 2

• no real solutions

Tags

TEKS.MATH.A.8A

Solve: (2x - 1)² = 49

• 7 and - 7

• 3 and -4

• 4 and -3

• no real solutions

Tags

TEKS.MATH.A.8A