Review of Factoring

 $8x^7+12x^6-6x^4$  

Factor by finding the GCF:

•  $2x^4\left(4x^3+6x^2-3\right)$  

•  $2\left(4x^7+6x^6-3x^4\right)$  

•  $x\left(8x^6+12x^5-6x^3\right)$  

•  $x^4\left(8x^3+12x^2-6x^4\right)$  

Factor by finding the GCF

10x² + 15x-5

• 25(10x³+45x-15)

• 5(2x³ + 3x²-x)

• x(10x³+15x-5)

• 5(2x²+3x-1)

Factor by finding the GCF

4b⁵+4b³+16b²

• 4b³(b⁴+b²+4b)

• 4b³(b⁴+4b+5)

• 4(b⁵+b³+4b²)

• 4b²(b³+b+4)

Factor by Grouping

7r³-8r²+42r-48

• (r²+6)(7r+8)

• (r²+6)(7r-8)

• (r²+6)(r²+8)

• (r²+6)(7r+6)

Factor by grouping

x³-5x²+5x-25

• (x²-5)(x-5)

• (x²+5)(x-5)

• (x²+5)(x+5)

• (x²-1)(x-25)

Factor by Grouping

30x³+15x²-18x-9

• (5x²-3)(6x+1)

• (5x²-3)(6x+3)

• 3(5x²+3)(2x-1)

• 3(5x²-3)(2x+1)

Factor as the product of two binomials.

 $x^2+11x+18=$ 

•  $\left(x+9\right)^2$ 

•  $\left(x+9\right)\left(x+2\right)$ 

•  $\left(x+3\right)^2$ 

•  $\left(x+2\right)\left(x-2\right)$ 

 $x^2-9x+20$  Factor:

• (x+4)(x+5)

• (x-2)(x-10)

• (x-8)(x-1)

• (x-4)(x-5)

 $x^2+13x-30$  Factor:

• (x+9)(x+4)

• (x-15)(x+2)

• (x-3)(x-10)

• (x+3)(x+10)