# Chapter R - Algebra Reference - R.3 Rational Expressions - R.3 Exercises: 5

$x-2$

#### Work Step by Step

Simplify by factoring the numerator and the denominator then cancelling common factors to have: $\require{cancel} \\=\dfrac{4x^2(x-2)}{4x^2} \\=\dfrac{\cancel{4x^2}(x-2)}{\cancel{4x^2}} \\=x-2$

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