
Yusuf A. answered 05/14/13
Tutor
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Experienced Tutor for Math Algebra/Geometry/Calculus, SAT/ACT, College
Step 1: Multiply (x-2)(2x+1)
2x^2 - 3x - 2
Step 2: Add (x+2) to your solution
x + 2 + 2x^2 - 3x - 2 which gives you
2x^2 - 2x
Step 3: and that equals
2x(x - 1)