- Simplify : x^2-36/x^2+6x * x^3+4x^2/x^2-4x-12
x^2-2x-8 = (x+2)(x-4) The other one is (x-6)(x+6) * x^2(x+4) -------------------------------- x(x+6) * (x-6)(x+2) Now you should be able to cancel factors and figure any excluded values (where the denominator is zero)
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