Ch. 3 Review

Factor out the GCF from the polynomial 2x⁶-12x⁴

• 2(x⁶ - 6x⁴)

• 2x⁵(x - 6x)

• 2x⁴(x² - 6)

• x⁶(2x² - 12)

Factor x² + x - 6

• (x - 3)(x + 2)

• (x + 1)(x - 6)

• (x - 2)(x + 3)

• (x - 1)(x + 6)

Factor 3x² + 13x + 12

• (x + 4)(x + 9)

• (x + 12)(x + 1)

• (3x + 4)(x + 3)

• (3x + 3)(x + 4)

Solve by factoring x² + 9x + 20 = 0

• x= 4, 5

• x= 10, 2

• x= -4, -5

• x= -10, -2

Solve by factoring x² + 6x - 72 = 0

• x = 24, -12

• x = 6

• x = 6, -6

• x = 6, -12

Solve by factoring: x² - 9x + 14 = 0

• x = -4, -5

• x = -7, -2

• x = 14, -9

• x = 2, 7

Solve by factoring: x² + x = 30

• x = -6, 5

• x = 6, -5

• x = 30, -1

• not factorable

Solve by factoring: 3x² - 7x + 2 = 0

• x = -2, -12

• x = 2, 12

• x = -1/3, -2

• x = 1/3, 2

Solve using square roots: 6x² - 24 = 0

• x = 2

• x = 4

• x = 2, -2

• x = 4, -4

Solve using square roots: 4x² - 125 = -25

• x = 5, -5

• x = 10, -10

• x = 25, -25

• no solution