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OpenStudy (anonymous):
how to simplify rational expressions and exclude any values. 4x-8/4x+ 20 a) x-2/4x+20; where x isn't equal to -5 b)x+5/x-2; x isn't equal to 2 c)x-2/x+5; x isn't = to -5 d)4(x+2/x-5); x isn't equal to 5
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