Question

Gente, pelo amor de Deus, me ajuda, por favor!

Answer 1

a)

$3x.(x^3+2x^2-2)=3x^4+6x^3-6x$

b)

$a^3b^2.(2ab+b-a)=2a^4b^3+a^3b^3-a^4b^2$

c)

$5p^2t^4.(2p^3t^5-6p^7t+p^2-t)=10p^5t^9-30p^9t^5+5p^4t^4-5p^2t^5$

d)

$\frac{2y^2}{5}.\left(\frac{y^3}{6}-\frac{10y}{7}\right)=\frac{2y^5}{30}-\frac{20y^3}{35}}=\frac{y^5}{15}-\frac{4y^3}{7}$

e)

$3a.(5x+x^2-3a+x)=15ax+3ax^2-9a^2+3ax$