Question from Rapin, a student:

Dear Sir,

x and n are the whole number and less than 100 , x^2 + x^3 = n^2, please help to solve this equation.

rdgs rapin

Rapin,

If x^{2} + x^{3} = n^{2} then x^{2}(1 + x) = n^{2}. What does that tell you about 1 + x?

Penny