Question

ajuda aqui pfvr
2- junte os termos semelhantes
a) 4xy (-2xy)+xy=
b) 10x+2y-12x+5y=
c) 6m²+7k+m²
d) 20xk³+12xy-xk³+xy=

Answer 1

Resposta:

a) 4xy (-2xy)+xy=

$4xy - 2xy + xy \\ 2xy + xy \\ = 3xy$

b) 10x+2y-12x+5y=

$10x + 2y - 12x + 5y \\ - 2x + 7y$

c) 6m²+7k+m²

$6 {m}^{2} + 7k + {m}^{2} \\7 {m}^{2} + 7k$

d) 20xk³+12xy-xk³+xy=

$20x {k}^{3} + 12xy - x {k}^{2} + xy \\ 19x {k}^{2} + 13xy$