I need help for my homework can someone tell me how to do x^{3} - x^{2} =55^{ and say how u done it}

x^3 - x^2 =55 subtract 55 from both sides

x^3 - x^2 - 55 = 0

This would be difficult to solve algeraically.....here are the solutions :

http://www.wolframalpha.com/input/?i=x%5E3+-+x%5E2++-+55+++%3D+0

x ≈ 4.1672

x ≈ -1.5836 - 3.2696 i

x ≈ -1.5836 + 3.2696 i

thanks