化简 (2x-3y)+(5x+4y) (8a-7b)-(4a-5b) a-(2a+b)+2(a-2b) 3(5x+4)-(3x-5)(8x-3y)-(4x+3y-z)+2z
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化简(2x-3y)+(5x+4y)(8a-7b)-(4a-5b)a-(2a+b)+2(a-2b)3(5x+4)-(3x-5)(8x-3y)-(4x+3y-z)+2z化简(2x-3y)+(5x+4y)(
化简 (2x-3y)+(5x+4y) (8a-7b)-(4a-5b) a-(2a+b)+2(a-2b) 3(5x+4)-(3x-5)(8x-3y)-(4x+3y-z)+2z
化简 (2x-3y)+(5x+4y) (8a-7b)-(4a-5b) a-(2a+b)+2(a-2b) 3(5x+4)-(3x-5)
(8x-3y)-(4x+3y-z)+2z
化简 (2x-3y)+(5x+4y) (8a-7b)-(4a-5b) a-(2a+b)+2(a-2b) 3(5x+4)-(3x-5)(8x-3y)-(4x+3y-z)+2z
7x+y 4a-2b a-5b 12x+17 4x-6y+3z
(x+y)^6/(x+y)^4-(x-y)^5/(x-y)^3 化简 ..
(x-y)^3×(y-x)^4+(x-y)^2×(y-x)^5
[(x+y)(x-y)-(x-y)的平方+2y(x-y)]除以(4y)请帮我一下写两道计算题[(x+y)(x-y)-(x-y)的平方+2y(x-y)]除以(4y)[(3x+2y)(3x-2y)-(x+2y)(5x-2y)]除以(4x)
(y-x)^4(x-y)^3+2(x-y)^6(y-x)
12(x+y)^3(y-x)/【4(x+y)^2(x-y)】
(x+y)/2- x-y/2=6 3(x+y)=4(x-y)
2分之x+y+3分之x-y;4(x+y)-(x-y)谢谢了,
-(5x+y)-3(2x-3y)(化简)
化简(x-y)-4(2x-3y)
合并同类项3(x-y)^4-(2(x-y)^4-5(X-Y)^4)-(X-Y)^4合并同类项3(x-y)^4-(2(x-y)^4-5(X-Y)^4)-(X-Y)^4
化简x+y分之x²-y²-2X-y分之4x(x-y)+y²
化简:2(x-y)2-3(y-x)+5(X-Y)2=3(x-y)
2(x-y)+3(x+y)2-5(x-y)-8(x+y)2-(x-y)
化简,亲快啊啊急!(3x-2y)(7x-y)-(4x+3y)(x-y)
-(5x+y)-7(x-y) -2分之1(x+y)+4分之1(x+2y) 4x-2(x-2) -2x-(3x-1) x-(5x-2y)+2(2x-y)
计算:(3x+4y)(3x-4y)-5(x+y)(x-2y)
x+2y=3(x+y)+5 3x-4y=4(x+y)-15
x²-y²+5x+3y+4(x+y-2xy)(x+y-z)+(xy-1)²