Question

Simplify x to the fourth power minus 3 times x cubed all over x squared minus 9

Answer 1

the expression to be simplified is:
(x^4-3x^3)/(x^2-9)
taking x^3 common out of the numerator and applying the identity a^2-b^2=(a+b)(a-b) in the denominator, we get
(x^3)(x-3)/(x+3)(x-3) = (x^3)/(x+3)

Answer 2

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