[(3x +2y)(3x-2y)-(x+2y)(5x-2y)]÷(4x)要步骤
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[(3x +2y)(3x-2y)-(x+2y)(5x-2y)]÷(4x)要步骤
[(3x +2y)(3x-2y)-(x+2y)(5x-2y)]÷(4x)要步骤
[(3x +2y)(3x-2y)-(x+2y)(5x-2y)]÷(4x)要步骤
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先化简,再求值 [2/3x - 2/x+y(x+y/3x -x-y)]*x/x-y,其中5x+3y=0
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[(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)
(x/x+y +2y/x+y)乘以xy/ x+2y除以(1/x+1/y)(2)(3x^2/4y)^2乘以2y/3x+ x^2/2y^2除以2y^2/x