Question

escreva os polinomios de forma reduzida
a) 2bx(1-a) +2x(a-b-c) -2x(a-c)

b) 3a(2a-b)-[a(6a-3b)-b(3a-5b)]​

Answer 1

a) -2ab

b) 3ab-5b²

a) 2b(1-a) +2(a-b-c) -2(a-c)

2b-2ab+2a-2b-2c-2a+2c

-2a+2a+2b-2b-2c+2c-2ab

-2ab

b) 3a(2a-b)-[a(6a-3b)-b(3a-5b)]

6a²-3ab-[6a²-3ab-3ab+5b²]

6a²-3ab-6a²+3ab+3ab-5b²

3ab-5b²

Boa noite ❤️

27/10/21