Question

Preciso que vcs me ajudem, agradeço desde já

Answer 1

A) -12x³-10x²+6x-6x²-5x-3

=-12x³-16x²+x-3

B)2$a^{4}$-2a³+a²-2a²+2a-1

=2$a^{4}$-2a³-a²-1

C)a³-a²x+ax²+a²x-ax²+x³

=a³+x³

D)27a³+18a²b+12b²a-18ba²-12ab²-4b³

=27a³-4b³

E)m²-mn-m²n-mn+n²+mn²

=m²-2mn+n²-m²n+mn²

F)$a^{5}$+$a^{4}$-a³-a²+$a^{4}$+a³-a²-a

=$a^{5}$+2$a^{4}$-2a²-a

G)2x³-3x²+2x-6x²+9x-6

=2x³-9x²+11x-6

H)8a³-6a²y+4ay²-4a²y+3ay²-2y³

8a³-2y³-10a³y+7ay²