Factoring with a GCF

Factor 7x + 21 using the GCF

• 7(x+3)

• 7x + 3

• 3(x + 7)

• x(7 + 3)

Factor 12x - 40 using the GCF

• 2 (6x -20)

• 4 (3x + 10)

• 4 (3x - 10)

• 2 (6x + 20)

Factor by using GCF:
8n³ + 2n²

• 2n²(4n-1)

• 2n²(4n + 1)

• n²(8n+2)

• 3n(4n+1)

Factor using the GCF: 3x³ + 9x² - 15x

• x(3x² + 9x - 15)

• 3x(x² + 3x - 5)

• 3x(x² - 9x + 15)

• x(3x² -9x + 15)

8r³ + 16r²

• 4r²(2r + 4)

• 8r²(r + 2)

• 8(r³ + r²)

• 4(r³ + 2r²)

Factor completely: 
3x² + 18x +27
Hint: Factor GCF first.

• 3(x² + 6x + 5)

• (x + 5)(x + 1)

• 3(x² +6x + 9)

• Prime