Question 104254

{{{(4x^5 + 7x^4 - 3x^2 + 9) + (6x^5 -8x^4 + 2x^3 - 7)}}}   Start with the given expression


{{{(4x^5+6x^5)+(7x^4-8x^4)+(-3x^2)+(2x^3)+(9-7)}}} Group like terms


{{{10x^5-x^4-3x^2+2x^3+2}}} Combine like terms