А)(2a+5b)-(8a-11b)+(9b-5a)= б)(2a-1)(3a+7)= г)(y+2)(y+3)-y(y-1)=

Question

А)(2a+5b)-(8a-11b)+(9b-5a)= б)(2a-1)(3a+7)= г)(y+2)(y+3)-y(y-1)=

Answer 1

А) 2а+5b-8a+11b+9b-5a=-11a+25b
Б) 6а^2+11а-7
Г) y^2+3y+2y +6-y^2 - y=6y+6