将(2x十3y)(a-b)-2(a-b)(x-y)化简
设集合A={y/y=x^2十l},B={y/y=一X^2十2X十3},求A交B
(x+y)(a-2b)
已知集合a={y|y=x²一3/2x十1,x[3/4,2]},b={x|x十m²>=
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)
因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(
A=2x十y,B=2x一y,计算A的平方一B的平方
计算 1.[(a+b)^2-(a+b)(a-b)]÷(-b) 2.[(x+y)(2x+y)+(x+y)(x-y)]÷3x
已知:A=X*X-3xy+y*y,B=2x*x+xy-3y*3y.求A+B,A-B,A+2B
分解公因式p(x-y)-q(y-x)(a+b)(a-b)-(b+a)10a(x-y)^2-5b(y-x)3p(m-2n)
化简题.化简,(a^-3b^4)^2乘(3a^2b)^-2.(x+y)乘x^2/x^2-y^2+y^2/y-x.y-3/
几道因式分解..4ab(a+b)^2-6a^2b(a+b)(x+y)^2(x-y)+(x+y)(x-y)^22a(a-3
3x(a-b)-2y(b-a) 因式分解