Question

pfvv me ajudem
isso vai cair na minha prova de amanhã ​

Answer 1

Resposta:

a) 2 . (4y + 3)

2 . 4y + 2 . 3

8y + 6

b) 2y . (2x + 2)

2y . 2x + 2y . 2

4xy + 4y

c) -5y . (4x - 3)

-5y . 4x + (-5y . -3)

-20xy + (+15y)

-20xy + 15y

d) $\frac{1}{3}x . (\frac{2}{5}x^{2} + \frac{1}{2} )$

$\frac{1}{3}x . \frac{2}{5}x^{2} + \frac{1}{3} . \frac{1}{2}$

$\frac{2}{15}x^{3} + \frac{1}{6}$

e) ab . (2$a^{2} b$ - ab)

ab . 2$a^{2} b$ + (ab . -ab)

2$a^{3} b$ + ( $-(ab)^{2}$ )

2$a^{3} b$ $- (ab)^{2}$