If x^2=x+2, then x^3=? Choose the correct choice from the following answers
A) 3x+2  B) 3x-2  C) 2x+1  D) 2x-3  E) 3x+4
Given X^2 = X+2   X^3 = X*X^2 = x*(X+2)-- Substituted from above.   = X^2 + 2X = X+2+2X = 3X+2.   Hence 3x+2.
<result>A</result>
If x^2=x+2, then x^3=?