Question

calcule : e),f),g), h)

Answer 1

E)
$x^{5} -21 x^{5} +8 x^{5}$
$-20 x^{5} +8 x^{5}$$[tex]-12 x^{5}$

F)
-6abc - abc - 2abc
-7abc - 2abc
-9abc

G)
-7m + m + 6m
-6m + 6m
0m
0

Só sei essas.