Gcf and Dops Factoring

Factor by using the GCF

18x³ + 81x - 27

• 9x (2x² + 9x - 3)

• 3 (6x³ + 27x - 9)

• 9 (2x³ + 9x - 3)

• 9 (2x² + 9x - 3)

What is the GCF of 18 and 24?

• 3

• 6

• 8

• 9

What is the GCF of 18k and 15k³

• 3k²

• 3k³

• 3k

• 5k

Factor out the GCF, then factor using the difference of squares.

• 3x(x + 3)(x - 3)

• 3x(x² - 9)

• 3(x² - 27x)

• 3x (x² + 3)(x² - 3)

Factor 7x + 21 using the GCF

• 7(x+3)

• 7x + 3

• 3(x + 7)

• x(7 + 3)

Factor (Hint: Look for GCF, first!)
3x² - 75

• 3( x + 5 )( x - 5 ) 

• Prime

• ( 3x + 9 )( 3x - 9 ) 

• 3( x - 6 )( x + 6 ) 

Factor by GCF:

18a²-15a

• 15a(3a-1)

• 3a(6a-1)

• 3(6a-5)

• 3a(6a-5)

Factor by GCF:
4b⁵ + 4b³ + 16b²

• 4b³(b⁴+b²+4b)

• 4b³(b⁴+4b+5)

• 4(b⁵+b³+4b²)

• 4b²(b³+b+4)

What is the GCF of the trinomial?

• 6x³y²

• 6xy

• 6x⁶y⁴

• 6x³y

Factor using the GCF method
8r³ + 16r²

• 4r²(2r + 4)

• 8r²(r + 2)

• 8(r³ + r²)

• 4(r³ + 2r²)