DOTS, GCF, AM Factoring Review

Factor:
x² - 9

• ( x -9) (x - 9)
• (x + 3) (x + 3)
• (x + 3) (x - 3)
• ( x + 9) (x-9)

16n² - 25

• (16n - 25)(16n + 25)
• (8n - 5)(8n + 5)
• (4n + 5)(4n - 5)
• Not Factorable

x² - 400

• ( x - 200) ( x + 200) 
• ( x + 20) ( x + 20) 
• Prime
• ( x - 20) ( x + 20) 

x⁵ + x⁴ + x²

• x³(x² + x + 1)

• x(x⁴ + x³ + x)

• x²(x³ + x²)

• x²(x³ + x² + 1)

5x² + 20

• 5(x + 4)

• 5x(x + 4)

• 5(x² + 4)

• 5x²(x + 4)

6x²y - 18xy²

• 6(x - 3y)

• 6xy(x - 3y)

• 6xy²(x - 3)

• 6x²y(3y - 1)

Factor:
 2n²-8n³

• 2n²(n-4n²)
• 2n²(1-4n²)
• 2n³(10-8n²)
• 3n(1-4n)

Factor
10x² + 15x-5

• 25(10x³+45x-15)
• 5(2x³ + 3x²-x)
• x(10x³+15x-5)
• 5(2x²+3x-1)

Factor 9x² - 64

• (3x - 8)(3x + 8)

• (3x + 8)²

• (3x - 8)²

• (x + 8)(x - 8)

When factoring we always look for what first?

• DOTS

• GCF

• Factor By Grouping