Solve by Factoring

Solve:

2x²+ 7x + 6 = 0

• x= 3/2 and x = 2

• x = -3/2 and x = -2

• x = 3 and x = 4

• x = -3 and x = -4

Tags

CCSS.HSA-REI.B.4B

Factor, do NOT solve:

3x² + 5x + 2

• x = -2/3 and x = -1

• (3x + 2)(x + 1)

• (3x + 6)(x + 1)

• x = -6 and x = -1

Solve:

49x² = 25

• x = 5/7

• x = -5/7 and x = 5/7

• Cannot solve

• x = -7/5 and x = 7/5

Tags

CCSS.8.EE.A.2

Factor, do NOT solve:

81x³ - 100x

• x(81x² - 100)

• x(9x - 10)(9x + 10)

• x(9x - 10)

• cannot factor

Tags

CCSS.HSA.APR.C.4

Solve:

x² - 9x + 10 = -10

• x = -4 and x = -5

• cannot solve

• (x - 4)(x - 5)

• x = 4 and x = 5

Tags

CCSS.HSA-REI.B.4B

Factor:

25x² + 16

• (5x + 4)(5x + 4)

• not factorable

• (5x + 4)(5x - 4)

Tags

CCSS.HSA.APR.C.4

Solve:

4x² + 2x = 0

• x = 0, x = 1/2

• x = 0, x = -1/2

• x = -1/2

Tags

CCSS.HSA-REI.B.4B

Solve:

3x²- 8x - 24 = -2x

• x = 0, -4, 2

• x = -4, 2

• x = 0, 4, -2

• x = 4, -2

Tags

CCSS.HSA-REI.B.4B

Solve:

hint: first take out a GCF

x³ - 13x² - 30x = 0

• x = 15, -2

• x = 0, 15, -2

• x = -15, 2

• x = 0, 10, 3

Tags

CCSS.HSA-REI.B.4B