Rational Expressions

Michigan State University - Diagnostic Exam

If $x ⁄= - 2, 1, or 2$ which is equivalent to $2 (x----1)(x-+-2-) (x2 - 4)(x - 1 )$ ?

a) $1- 2$ b) $x3 - 2x2 + x-- 1- 4 2$ c) $(x---1-)(x-+-2) (x - 2 )2$

d) $x-+-2- x - 4$ e) $x +-1- x - 2$

Solution:

(x-+-1)(x---1)(x-+-2) = (x + 2)(x - 2)(x - 1) = x-+-1- x - 2

Diagnostic:

If you miss this question please review simplifying rational expressions.

July 15, 2008