Question

(2a + 3/5 b). (a - 1/2 b)
resposta rapida
se tiver cálculo agradeço​

Answer 1

$(2a + \frac{3}{5} b) \times (a - \frac{1}{2} b) \\ \\ 2 a\times a - 2a \times \frac{1}{2} b + \frac{3}{5} ab - \frac{3}{5} \times \frac{1}{2} b \\ \\ 2 {a}^{2} - ab + \frac{3}{5} ab - \frac{3}{10} {b}^{2} \\ \\ 2 {a}^{2} - \frac{2}{5} ab - \frac{3}{10} {b}^{2}$

Answer 2

Resposta:

Explicação passo a passo:

(2a + 3/5 b). (a - 1/2 b)

"=2a²- 2a.1/2.b + ab.3/5 -3/10 b² "

"= 2a² - ab +3ab/5 -3b²/10"

" = 2a² (- 5ab+3ab)/5 - 3b²/1a0'

"= 2a² -2ab/5 -3b²/10"