Question

Considerando A=x+3,b =x-1 e C = 3x sobre 2 -3 determine (A +B ) ·C

Answer 1

Opa

(x+3+x-1)•3x/2-3

(2x+3-1)•3x/2-3

(2x+2)•3x/2-3

2(x+1)•3x/2-3

(x-1)•3x-3

3x²+3x-3