Factoring

Factor completely: x²-13x+40

• (x-5)(x-8)
• (x+5)(x+8)
• (x-4)(x-10)
• (x-2)(x-20)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.APR.B.3

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor completely: 3x²-8x+4

• (3x-4)(x-1)
• (3x-2)(x-2)
• (x+1)(3x+4)
• (x+2)(3x+2)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor completely: -3x²-24x-21

• (3x-3)(x-7)
• (x-7)(x-1)
• -3(x+7)(x+1)
• (x+21)(x+1)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor completely: -5x²+30x-40

• -5(x-2)(x-4)
• (x-2)(x-4)
• -(5x-8)(x-5)
• (5x+10)(x+4)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor completely: 49x²+28x+4

• (49x+4)(x+1)
• (7x+2)²
• (7x+1)(7x+4)
• (7x-2)²

Tags

CCSS.HSA.APR.C.4

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