Question

alguém me ajuda ​ pfvr ​

Answer 1

Resposta:

a) 3$x^{3}$

b) 7$x^{3}$

c) 14$x^{3}$

d) 14$x^{3}$

Explicação passo-a-passo:

Considerando a aresta do cubo com $x$...

a) 2$x$ x $x$ x $x$ + $x$ x $x$ x $x$ = 2$x^{3}$ + $x^{3}$ = 3$x^{3}$

b) 2$x$ x 2$x$ x $x$ + 2$x$ x $x$ x $x$ + $x$ x $x$ x $x$ = 4$x^{3}$ + 2$x^{3}$ + $x^{3}$ = 7$x^{3}$

c) 2$x$ x 2$x$ x $x$ + 2$x$ x 2$x$ x $x$ + 2$x$ x $x$ x $x$ + 2$x$ x $x$ x $x$ + $x$ x $x$ x $x$ + $x$ x $x$ x $x$ =

= 4$x^{3}$ + 4$x^{3}$ + 2$x^{3}$ + 2$x^{3}$ + $x^{3}$ + $x^{3}$ = 14$x^{3}$

d) 2$x$ x 2$x$ x $x$ + 2$x$ x 2$x$ x $x$ + 2$x$ x $x$ x $x$ + 2$x$ x $x$ x $x$ + $x$ x $x$ x $x$ + $x$ x $x$ x $x$ =

= 4$x^{3}$ + 4$x^{3}$ + 2$x^{3}$ + 2$x^{3}$ + $x^{3}$ + $x^{3}$ = 14$x^{3}$