Precalculus

josh
October 31, 2015 0 Comment

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Question

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Use common factor factoring to rewrite and simplfy the expressions. Do not leave negative or rational exponents in your answers. Factor final expressions and/or numerators where possible. Write answers as single fractions where applicable.
1. 4x^-2(x-5)-12x^-3(x-5)^2
2. 6x^3(x+2)^-2+8x^2(x+2)^-3
3. 9x^4 (x-3)^-3-12x^2 (x-3)^-2

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