Question

(3ab+5ac-2bc)-(3ac+5bc+ab)

Answer 1

3ab - ab = 2 ab
5ac- 3ac = 2 ac
-2bc - 5bc = -7bc

resposta 2ab+2ac-7bc

Answer 2

3ab²+15abc+3ab+15ac+5abc-6abc+10bc+2abc.<br />6ab+15ac+10bc+12abc. n sei se tá certo,mais tentei ajudar