Factoring Out the Gcf of a Polynomial

3x² - 75

• 3( x + 5 ) ( x - 5 ) 

• Prime

• ( x + 5 ) ( x - 5 ) 

• 3( x - 5 ) ( x - 5 ) 

What is the GCF of the trinomial?
3x² - 9x -120

• 3

• 2

• 6

• 9

Factor completely:
3x² + 18x +15
Hint: Factor GCF first.

• 3(x² + 6x + 5)

• (x + 5)(x + 1)

• 3(x + 5)(x + 1)

• Prime

Factor using the GCF method
8r³ + 16r²

• 4r²(2r + 4)

• 8r²(r + 2)

• 8(r³ + r²)

• 4(r³ + 2r²)

What is the GCF?

5x² + 20x

• 5

• x

• 5x

• 20x

Factor by GCF:

17xy - x

• 17(xy - x)

• y(17x - x)

• x(17y - 1)

• Prime

What is the GCF of 18k and 15k³

• 5k³

• 3k³

• 3k

• 5k

GCF of 2x + 8x

• 2

• 2x

• x

• 8