Factorising polynomials

Factor w³ + 3w

• 3w(1)
• w(w² + 3)
• w³(w + 3)

The area of a rectangular pool is (15x – 9) square units. What are the dimensions of the pool?

 $x^{2a}+x^a$  

•  $x^a\left(x^2+1\right)$  

•  $a\left(x^2+x\right)$  

•  $x^a\left(x^a+1\right)$  

• prime

Factor.

• A

• B

• C

• D

What is the factored form of

x³ + 7x² - 2x -14 ?

• (x² - 2)(x - 7)

• (x² + 2)(x - 7)

• (x² + 2)(x + 7)

• (x² - 2)(x + 7)

Factor:

3x³-x²+6x-2

• (x²+2)(3x+1)

• (x²+2)(3x-1)

• (3x³+6x)(x²-2)

• none of the aboe

 $4k^3+32k^2-80k$  

FACTOR

8x³ − 18x

• 2x(4x² + 9)

• (4x² + 3) (2x − 3)

• 2x(2x + 3) (2x − 3)

• Not factorable

Factor 2ac + 6bc + ad + 3bd

• (2c + d)(a + 3b)

• (2c - d)(a + 3b)

• (4c-2d)(2a + 3b)

• (5c - d)(a + 3b)