Factoring Polynomials Review

Mathematical Equivalence

ON

Factor
r² -16r + 60

• (r - 15)(r + 4)
• (r - 6)(r + 10)
• (r - 6)(r - 10)
• (r +30)(r - 2)

What is the GCF of 18k and 15k³

• 3k²
• 3k³
• 3k
• 5k

Factor:
 2n²-8n³

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

What is the first question you ask yourself when factoring a polynomial?

• How many terms does it have?

• Is there a GCF?

• Have I completed all of my Algebra assignments this nine weeks?

• How long is this going to take?!?!?!

Factor: 
3x² + 18x +15
Hint: Factor GCF first.

• 3(x² + 6x + 5)
• (x + 5)(x + 1)
• 3(x + 5)(x + 1)
• Prime

Factor Completely:
x² - 36

• (x + 9)(x - 4)
• (x - 6)(x - 6)
• (x - 9)(x + 4)
• (x + 6)(x - 6)

Tags

CCSS.HSA.APR.C.4

Factor 25x² - 81.

• (5x -  9)(5x + 9)
• (5x - 9)(5x - 9)
• (5x + 9)(5x + 9)
• cannot be factored

Tags

CCSS.HSA.APR.C.4

factor completely 
81m² - 1 

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

Tags

CCSS.HSA.APR.C.4

Which of the following expressions are examples of DOTS (Difference of Two perfect Squares)?

• $x^2-36$

• $x^2+4$

• $4x^2-1$

• $x^2-196$

• $x-100$

Tags

CCSS.HSA.APR.C.4