Factor by GCF and DOTS

Find the GCF of $40x^5$  and  $120xy$  

•  $3x$  

•  $40x$  

•  $40$  

Factor: (GCF)

56a³-8a

• 8a²(56a³-8a)

• 8a(7a²-1)

• 8a(7a³-a)

• 8a²(35a²-a)

Factor (DOTS) $36m^2-1$  

•  $\left(6m-1\right)\left(6m+1\right)$  

•  $18m-1$  

•  $1\left(36m^2\right)$  

•  $\left(1-6m\right)\left(1+6m\right)$  

Factor:

x² - 9

• ( x -9) (x - 9)

• (x + 3) (x + 3)

• (x + 3) (x - 3)

• ( x + 9) (x-9)

Factor: (Hint: put in standard form first)

80x⁵-70x²-60x⁷

• 2x²(80x³-70-60x⁶)

• 10x²(80x⁴-70x-60x⁶)

• 10x²(8x³-7-6x⁵)

• 3x²(80x³-40-60x⁵)

Factor: x² + 81

• prime

• ( x - 9 ) ( x + 9 )

• ( x + 9 ) ( x + 9 )

• ( x - 9 ) ( x - 9 )

Factor the Following completely (GCF and DOTS)

4x²-16

• (2x-4)(2x+4)

• (4x-4)(4x+4)

• 4(x-2)²

• 4(x-2)(x+2)

What is the GCF? 5x²+20x

• 5
• x
• 5x
• 20x

What is the GCF? 3x²-2x

• 3
• 3x
• x
• 2

What is the GCF? 2x²-4x+8

• 2x
• 2
• x
• 1