Factoring Polynomials

Which of the following is /are a sum or difference of two cubes?

What are the steps in factoring by grouping?

What is the GCF of the terms below?
 $24x^3\ +\ 36x^2$  

• 8x

•  $12x^2$  

•  $12x^3$  

•  $6x^2$  

• 4x

 $x^2-9$  = ?

•  $\left(x+3\right)^2$  

•  $\left(x-3\right)^2$  

• (x+3)(x-3)

• 3(x-3)

Factor Completely:

x² - 7x - 8

• (x + 1)(x - 8)

• (x + 1)(x + 8)

• 5(x + 4)(x + 5)

• (x - 1)(x + 8)

Factor
4n²-17n-15

• (n-10)(6n+1)
• (4n-5)(n-3)
• (n-5)(4n-3)
• (n-5)(4n+3)

Factor completely:

9m² + 30mn + 25n²

• (3m + 5n)²

• (3m - 5n)²

• (3m + n)²

• (m + 5n)²

Factor using GCF or monomial factoring: 2x + 18

• 2(x+9)

• 2(2x+9)

• 2(x+8)

• cannot be factored