Factoring and FOILing

Factor
n²-13n+40

• (n-5)(n-8)
• (n+5)(n-8)
• (n-5)(n+8)
• (n+6)(n+1)

Factor the Trinomial:
x² - 8x + 15

• (x + 5) ( x + 3)
• (x - 5) (x - 3)
• (x + 15) (x - 1)
• (x - 7) (x - 8)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

What are the factors of x²+3x-40

• (x+10)(x-4)
• (x+8)(x-5)
• (x+20)(x-2)
• (x+1)(x-3)

What are the factors of x²-8x-48

• (x-12)(x+4)
• (x+12)(x-4)
• (x+12)(x+4)
• (x-12)(x-4)

Find the factors of x²-81

• (x-9)(x+9)
• (x+9)(x+9)
• (x-9)(x-9)
• Can't be factored

Tags

CCSS.HSA.APR.C.4

Factor: x² + 2x – 3

• (x - 2)(x + 1)
• (x + 1)(x - 3)
• (x + 2)(x - 1)
• (x - 1)(x + 3)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor
n² + 16n + 63

• (n-7)(n+4)
• (n+7)(n-9)
• (n-3)(n-10)
• (n+7)(n+9)

Factor
81m² - 1 

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

Tags

CCSS.HSA.APR.C.4

(p + 8)²
 Hint: (p + 8)² = (p + 8)(p + 8)

• p ² − 16p − 64 
• p ² + 16p + 64 
• p ² − 16p − 8
• p ² − 16p + 64 

 Multiply: (r + 7)(r − 7) 

• r ² − 49 
• r ² + 14
• r ² − 7r + 49 

Tags

CCSS.HSA.APR.A.1