Question

2a²x³-ax³-a⁴-a²x³+ax³+2a⁴
5x×2y²-5x×3xy-x²y+6xy²

Answer 1

$2a^2x^3-ax^3-a^4-a^2x^3+ax^3+2a^4= \ 2a^4-a^4+2a^2x^3-a^2x^3-ax^3+ax^3=a^4+a^2x^3$

$5x*2y^2-5x*3xy-x^2+6xy^2=10xy^2-15x^2y+6xy^2-x^2= \ 16xy^2-15x^2y-x^2$