Question

Reduzir
(2x-1)²-3x.(1+x)=7.(3-x)


12-(x-6).(x+1)= -2 ( x²-11)

Answer 1

Explicação passo-a-passo:

a) 4x^-2x+1-3x+3x^=21-7x

4x^+3x^-3x+7x+1-21

7X^+4x-20

b)12-x^-x+6x+6=2x^+22

+x^-2x^-X+6x+12+6-22

-x+5x-4