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simplify    (4/3x+3)= (12/x^2-1)

leslie079

by leslie079 at June 03, 2010

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If this is 4/(3x), here is how you do it: (4+9x)((x^2)-1) = 36x 4(x^2)+9(x^2)-4-9x=36x = 13x2-45x-4

yankeekid yankeekid June 03, 2010

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cross multiply4(x^2-1)= 12(3x+3)4x^2-4-36x-36=04x^2-36x-40=04(x^2-9x-10)=04(x+1)(x+10)=0

gibby. gibby. June 03, 2010

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