RC2.7.N – Factoring
Factoring is basically undoing multiplication, so let’s start there:
Simplify: (2x + 5)(x – 4)
ßThese are your ________________________
ß This is your _________________________
1. 2. The area of a rectangular rug can be expressed as x2 – 3x – 10 square units. If the length is
x – 5 units, what is the width?
3. 25 If a rectangular poster has an area of (2x2 − 9x + 10) square units, which of the following could
describe the dimensions of the poster?
A
(2x − 2) units by (x − 5) units
B
(2x − 10) units by (x + 1) units
C
(2x − 5) units by (x − 2) units
D
(2x − 1) units by (x − 10) units
4.