(8a2-3ab-5b2)-(2a2-2ab+3b2).
化简:a2-3ab+4b2-(2b2-3ab-3a2)=______.
若a2+2b2=5,则多项式(3a2-2ab+b2)-(a2-2ab-3b2)的值是______.
已知代数式3a2+(4ab-a2)-2(a2+2ab-b2).
(3a2-3ab+2b2)+(a2+4ab-2b2)=4a2+ab+b2
-2(ab-3a2)-[2b2-(5ab+a2)+2ab]
a2+b2=2,那么代数式(a2-2ab-3b2)-(3a-2ab-b2)的值是?
计算:(a2+ab+b2)(a2-ab+b2).
已知a2++ab=3,ab+b2=1,试求a2+2ab+b2,a2-b2的值
若a2+b2=6,则式子(3a2-2ab-b2)-(a2-2ab-3b3)=______.
已知|a+1|+(2a-b)2=0,求3ab-15b2+5a2-6ab+15a2-2b2的值.
3a2+ab-2b2=0,求a/b-b/a-(a2+b2)/ab (a,b不等于0)
已知a2+b2=5,ab=-3,则代数式4a2-4b2+3ab-2a2+6b2+2ab的值是 .