Solution to Quadratic by Factoring or Taking Square Root

Solve for x by taking square roots.

-9p² = -576

• x = 8

• x = 64

• x = 8, -8

• x = 64, -64

Solve by taking square roots:
3 + 9r² = 12

• r = 0
• no solution
• r = 3, r = -3
• r = 1, r = -1

Solve by factoring: 2x² - 5x - 12 = 0

• x = -4 and x = -6
• x = 4 and x = -3/2
• x = 4 and x = 6
• x = -4 and x = 3/2

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
k² - 6 = 43

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

Solve
x² + 13x + 12 = 0

• x = -12, -1
• x = 12, 1
• x = 13, 1
• x = -13, -1

Solve by taking square roots:
a² + 9 = 9

• no solution
• a = 0
• a = 3 or -3
• a = 18

Tags

CCSS.HSA-REI.B.4B

Find the zeros of the equation: 
(x+10)(x-2) = 0

• 10 and 2
• -2 and 10
• -10 and 2
• -2 and -10

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Solve the equation: x² - 5x - 24 = 0

• x = 6, x = -4

• x = 8, x = -3

• x = 12, x = -2

• x = 24, x = -1

• No Real Solutions

Solve the equation: x² - 4x - 60 = 0

• x = 10, x = 6

• x = 10, x = -6

• x = 15, x = 4

• x = 15, x = -4

• No Real Solutions

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4