-11а-11б=-11(а+б)=-11*12=-132
3a²+6ab+3b²=3(a²+2ab+b²)=3(a+b)²= 3* 144= 432
-10a²-10b²-20ab= -10(a²+b²+2ab)= -10*(a+b)²= -10*144= -1440
-11а-11б=-11(а+б)=-11*12=-132
3a²+6ab+3b²=3(a²+2ab+b²)=3(a+b)²= 3* 144= 432
-10a²-10b²-20ab= -10(a²+b²+2ab)= -10*(a+b)²= -10*144= -1440