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Solving for x in rational expressions

Q: x cannot equal 0, 2, or 3. What is x? (x^3 – 4x)/(x^3 – 5x^2 + 6x)=0

A: You need to factor the top and bottom.

Note that you can cancel out the first x’s at this point. Now factor. Cancel out the x-2 terms from top and bottom. You are left . . . → Read More: Solving for x in rational expressions