Quadratic Equations

Solve for x:

x² + 7x = 30

• x = -10 or x = 7

• x = 10 or x = -3

• x = -10 or x = -3

• x = -10 or x = 3

Tags

CCSS.HSA-REI.B.4B

Factor completely: x² - 6x + 8

• (x-2)(x-4)

• (x-1)(x-8)

• (x+2)(x+4)

• (x+1)(x+8)

Solve for x:

x² - 25 = 0

• x = -5 or x = 5

• x = 5 or x = 5

• x = -5 or x = -5

Tags

CCSS.8.EE.A.2

Solve

x² + 2x - 20 = 4

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3

Tags

CCSS.HSA-REI.B.4B

Solve

16a² - 9 = 0

• a = ^-3/₄, a= ³/₄

• a = ^-4/₃, a = ⁴/₃

• a = ^-9/₁₆, a = ⁹/₁₆

• a = ^-16/₉, a = ¹⁶/₉

Tags

CCSS.HSA-REI.B.4B

Which of the following is a difference of perfect squares?

• x² - 18

• 4x² + 36 

• 9x² - 100

• x² + 4

Tags

CCSS.HSA.APR.C.4

What are the factors of
25x² - 81?

• (5x - 9)(5x + 9)

• (5x - 9)(5x - 9)

• (5x + 9)(5x + 9)

• Cannot be factored

Tags

CCSS.HSA.APR.C.4

Factor completely: 3x² - 36x + 96

• (x-4)(x-8)

• 3(x-4)(x-8)

• 3(x+1)(x+32)

• 3(x-2)(x+16)

Solve for n:

n² = 6 - 5n

• n = 2 or n = 3

• n = 1 or n = -6

• n = -1 or n = 6

• n = -2 or n = 3

Tags

CCSS.HSA-REI.B.4B

Factor:
p² - 14p

• p(1 - 14)

• 2p(p - 7)

• p²(1-14)

• p(p - 14)