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This is a very random question?! Or is that an application? The question x3 + x2 = 891 can be expressed as: x3 + x2 - 891=0 Using some maths, there are 3 answers to x. One real, and 2 imaginary. For the real answer, x=9.30055 (to 5 decimal places) The imaginary solutions are x=-5.15027+8.32319i and x=-5.15027-8.32319i (all to 5 decimal places). You can check these out by substituting them back into the equation.

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16y ago

What else can I help you with?