(2a)^3*b^4/12a^3b^2 5X^2(X+1)(X-1) (2X+Y-1)^2 198^2 59.8*60.
因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(
x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1)
①3a(5a-2b) ②(x-3y) ×(-6x) ③化简x(x-1)+2x(x+1)-3x(2x-5)
5a+2b+(3a-2b) -3x-(x+1)+(4x+2) -2/1(x+y)+3/1(x-y)
1/4(a-b)^2x(b-a)^3x(-a-b)^5x(2a+2b)^4
1.已知集合A={(x,y)|y=2x+1},B={(x,y)|y=x+3},a∈A,b∈B,求a
已知集合A={(x,y)| (y-3)/ (x-1)=2,x,y∈R},B={(x,y)| 4x+ay=16,x,y∈
3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+4
已知A=2x-4y,B=-2x的2次方+6x-3{y-x},求:{1}2A-B{2}3A-B
(3x-y)(3x+y)+y(x+y);(a+1/2b)(a-1/2b)-(3a-2b)(3a+2b)快点,
1、A={(x,y)|y=x平方-4x=5},B={(x,y)|y=2x平方-7},求A交B
ab-a*1/3b=?3x*5x-3x*2y=?