Question 62305
{{{(x^2+2x-1)^2}}}
{{{(x^2+2x-1)(x^2+2x-1)}}}  Distribute each term in the first parentheses through the second parentheses
{{{x^2(x^2+2x-1)+2x(x^2+2x-1)-1(x^2+2x-1)}}}
{{{x^4+2x^3-x^2+2x^3+4x^2-2x-x^2-2x+1}}}  Combine like terms.
{{{x^4+2x^3+2x^3-x^2+4x^2-x^2-2x-2x+1}}}
{{{x^4+4x^3+2x^2-4x+1}}}
Happy Calculating!!!