8. Factor Linear Expressions
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Find the product of the common prime factors.
4 units by (x-2) units
We know that the area of a rectangular dance floor is (4x-8) square units. We want to find possible dimensions of the dance floor. To do so, we can factor the expression for the area using the Distributive Property in reverse. First, let's find the greatest common factor (GCF) between the terms.
4x&= 2 * 2 * x
8&= 2 * 2 * 2
Rewrite 4x as 4 * x
Rewrite 8 as 4 * 2
Factor out 4
The factored expression for the area of the dance floor is 4(x-2) square units. Since the dance floor is a rectangle, it can be 4 units by (x-2) units.