DOTS Factoring

Factor:
x² - 9

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

Tags

CCSS.HSA.APR.C.4

16n² - 25

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

Tags

CCSS.HSA.APR.C.4

Factor the Following completely

4x²-16

• (2x-4)(2x+4)

• (4x-4)(4x+4)

• 4(x-2)²

• 4(x-2)(x+2)

Tags

CCSS.HSA.APR.C.4

x² - 400

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

Tags

CCSS.HSA.APR.C.4

Factor x² - 25 (DOTS)

• ( x + 5 ) ( x - 5 ) 
• ( x - 5 ) ( x - 5 ) 
• ( x + 5 ) ( x + 5 ) 
• Prime

Tags

CCSS.HSA.APR.C.4

Factor 81m² - 1 (DOTS)

• not factorable
• (m - 9)(m + 9)
• 9m(9m - 1)
• (9m - 1)(9m + 1)

Tags

CCSS.HSA.APR.C.4

Factor $36m^2-1$  

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

•  $18m-1$  

•  $1\left(36m^2\right)$  

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

Tags

CCSS.HSA.APR.C.4

Factor $225-r^2$  

•  $\left(r-15\right)\left(r+15\right)$  

•  $\left(15-r\right)\left(15+r\right)$  

•  $112.5-r$  

Tags

CCSS.HSA.APR.C.4

Factor the Polynomial: (DOTS)

121r² - 64t²

• (11r + 8t)(11r - 8t)

• (11r - 8t)(11r - 8t)

• (11r + 8t)(11r + 8t)

• Unfactorable

Tags

CCSS.HSA.APR.C.4

Fully Factor the Following
25x²-81

• (5x-9)²
• (5x+9)(5x-9)
• 25(x-9)²
• (9x+5)(9x-5)

Tags

CCSS.HSA.APR.C.4