Question 117434
{{{5x^4-2n^2-(-x^4-x^2)}}} Start with the given expression


{{{5x^4-2n^2+x^4+x^2}}} Distribute the negative



{{{(-2n^2)+(x^2)+(x^4+5x^4)}}} Group like terms


{{{-2n^2+x^2+6x^4}}} Combine like terms