Question

resolva a equação (x -3) . (x +2) = (x +7) . (x -1)

Answer 1

Resposta:

3(×-1)-2(×+3)+5(2-×)=-7

3×-3-2×-6+10-5×=-7

3×-2×-5×=-7+3+6-10

-4×=-8

×=-8÷-4

×=2