Question

(y-3)•(y+4)+(2-y)-2•(6+y)•(y-6) упростите ​

Answer 1

Ответ: -y²+62

$(y - 3)(y + 4) + (2 - y) - 2(6 + y)(y - 6) = {y}^{2} + 4y - 3y - 12 + 2 - y - {2y}^{2} + 72 = { - y}^{2} + 62$