计算(a+b)(aa-ab+bb)-(a+b)(a+b)
计算(a+b)(aa-ab+bb)-(a+b)(a+b)
a/b=2,求(aa-ab+bb)/(aa+bb)
(a+b)(aa-ab+bb)=?
(aa-bb)(aa-bb)/(a-b)(a-b)
aa-ab-bb=0 求a/b=?
aa*bb+aa+bb+1=4ab 求2a+b的值
速解数学题已知A-4的绝对值加根号B-9的值为0,计算AA+AB/BB乘AA-AB/AA-BB的值
b(b+2)-bb+2a=4 求aa+2ab+bb-1=?
(a+b)/(a-b)+(a+b)/(a-b)(a-b)-(a+b)/(aa-bb)
已知a+b=2求(aa-bb)(aa-bb)-8(aa+bb)的值
计算:若(a+b)(a+b)=7,(a-b)(a-b)=3,求aa+bb和ab的值
已知a(a-1)=aa-b-5,求aa/2+bb/2-ab的值