7.6 Factoring ax^2 + bx + c

Factor
2x² - 13x - 70

• (2x-7)(x+10)
• (7x+5)(x+2)
• (2x+7)(x-10)
• 2(x+7)(x+10)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.B.3

Factor
5x²-28x+32

• (3x-10)(x+6)
• (x-8)(5x-4)
• (5x-8)(x-4)
• (5x-8)(x+7)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.B.3

Factor
4n²-17n-15

• (n-10)(6n+1)
• (4n-5)(n-3)
• (n-5)(4n-3)
• (n-5)(4n+3)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.APR.B.2

CCSS.HSA.REI.B.4

Factor

3q² + 30q + 27

• (q + 9)(q + 1)

• 3(q + 9)(q + 1)

• (q + 9)(q + 3)

• 3(q + 9)(q + 3)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.B.3

Factor

2x² - 14x - 36

• (x - 9)(x + 2)

• 2(x - 9)(x + 2)

• (x - 6)(x + 6)

• 2(x - 6)(x + 6)

Solve

2x² - 13x - 70 = 0

• x = -10, 7/2

• x = -2, 5/7

• x = 10, -7/2

• x = -7, -10

Tags

CCSS.HSA-REI.B.4B

Solve.

5x²-28x+32 = 0

• x = -6, 10/3

• x = 8, 4/5

• x = 4, 8/5

• x = -7, 8/5

Tags

CCSS.HSA-REI.B.4B

Solve.

2x² - 14x - 36 = 0

• x = -9, -2

• x = 9, -2

• x = 6, -6

• x = -6, -6

Tags

CCSS.HSA-REI.B.4B