2(2x+1)(2x-1)-(x-2)² 2.(3a-2b)(b-3a)-(2a-b)(3a+b) 3.(2a
1/4(a-b)^2x(b-a)^3x(-a-b)^5x(2a+2b)^4
数学题目(因式分解)3x^2-2x+1/39(a+b)^2+30(a-b)(a+b)+25(a+b)^2(x^2-2x)
亲们,做下数学题1.(x+y)(a+2b)= 2.(a+b)(a-b)= 3.(a-b)(a-1/3)
分解公因式的题 x(a-x)(a-y)-y(x-a)(y-a)-ab(a-b)^2+a(b-a)^2a^3b-ab2ab
{3x^2(a^2+b^2)-3a^2b^2+3[x^2+(a+b)x+ab]*[x(x-a)-b(x-a)]}/2x^
已知a,b是实数,若不等式(2a-b)x+3a-4b
2(2x+1)(2x-1)-(x-2)² 2.(3a-2b)(b-3a)-(2a-b)(3a+b) 3.(2a
若分式4X-9/3x平方-x-2=A/3x+2-B/X-1(A B为常数),则A B的值?
计算:a²/a-b-a-b/b²;3x/x-5-2x/5-x.
计算:1、[(a-b分之a²)+(b-a分之b²)]÷a-b分之a+b;2、(x-1分之x²
(A-B)*10%=(A-2B)*12%=(A-3B)*X%求X,
(a-b-c)X( b+c-a)^2X(c-a+b)^3=?