Get Ready for Factoring

Which of the following are factors of 18? Select ALL that apply.

• 9 and 2

• 18 and 1

• 4 and 5

• 6 and 3

Tags

CCSS.4.OA.B.4

Which factors of 18 add/subtract to -7 ? Be careful of your signs.

• (x+9)(x-2)

• (x+3)(x+6)

• (x-9)(x+2)

• None of the factors multiply to positive 18 and add/subtract to -7

• (x - 7) and (x - 3)

• (x + 7) and (x-3)

• (x - 7) and (x+3)

• (x + 7) and (x+3)

Tags

CCSS.HSA-REI.B.4B

• Factors: (x +2) and (x+9)

  Solutions: x = -2, -9

• Factors: (x -6) and (x-3)

  Solutions: x = -3, -6

• Factors: (x -2) and (x-9)

  Solutions: x = 2, 9

• Factors: (x +18) and (x-1)

  Solutions: x = 1, -18

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSF-IF.C.7C

Tags

CCSS.HSA-REI.B.4B

• x = 1 and 2

• x = -1 and -2

Tags

CCSS.HSA-REI.B.4B

• 5(x-2)²

• (x+5)(x+4)

• 5(x² + 2x + 4)

• (x+10)(x+2)

Tags

CCSS.HSA.APR.C.4

How could you fix this

factoring work of

x² + 10x + 24 ?

What is wrong about this

factoring work of

x² + 25x + 100 ?