作业帮求算[(3x-y²/2)+3y(x-y/12)]/[(2x+y)²-4y(x+y/4)]
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![求算[(3x-y²/2)+3y(x-y/12)]/[(2x+y)²-4y(x+y/4)]](/uploads/image/z/585962-26-2.jpg?t=%E6%B1%82%E7%AE%97%5B%283x-y%26%23178%3B%2F2%29%2B3y%28x-y%2F12%29%5D%2F%5B%282x%2By%29%26%23178%3B-4y%28x%2By%2F4%29%5D)
求算[(3x-y²/2)+3y(x-y/12)]/[(2x+y)²-4y(x+y/4)]
求算[(3x-y²/2)+3y(x-y/12)]/[(2x+y)²-4y(x+y/4)]
求算[(3x-y²/2)+3y(x-y/12)]/[(2x+y)²-4y(x+y/4)]
(3x -y^2 /2 +3xy -y^2/4)/(4x^2 +y^2 +4xy -4xy -y^2)
=(3x-3y^2/4 ) / (4x^2)
=