整式的加减问题(2)1.2.已知(2x²+ax-y+b)-(2bx²-3x+5y-1)的值与字母x的取值无关,求3﹙a²﹣ab﹣b²﹚-﹙4a²+ab+b²﹚的值.3.已知m,x,y,满足①2/3(x-5)²+5│m│=0,②-2
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![整式的加减问题(2)1.2.已知(2x²+ax-y+b)-(2bx²-3x+5y-1)的值与字母x的取值无关,求3﹙a²﹣ab﹣b²﹚-﹙4a²+ab+b²﹚的值.3.已知m,x,y,满足①2/3(x-5)²+5│m│=0,②-2](/uploads/image/z/11548948-4-8.jpg?t=%E6%95%B4%E5%BC%8F%E7%9A%84%E5%8A%A0%E5%87%8F%E9%97%AE%E9%A2%98%282%291.2.%E5%B7%B2%E7%9F%A5%EF%BC%882x%26%23178%3B%EF%BC%8Bax%EF%BC%8Dy%EF%BC%8Bb%EF%BC%89%EF%BC%8D%EF%BC%882bx%26%23178%3B%EF%BC%8D3x%EF%BC%8B5y%EF%BC%8D1%EF%BC%89%E7%9A%84%E5%80%BC%E4%B8%8E%E5%AD%97%E6%AF%8Dx%E7%9A%84%E5%8F%96%E5%80%BC%E6%97%A0%E5%85%B3%2C%E6%B1%823%EF%B9%99a%26%23178%3B%EF%B9%A3ab%EF%B9%A3b%26%23178%3B%EF%B9%9A%EF%BC%8D%EF%B9%994a%26%23178%3B%EF%BC%8Bab%EF%BC%8Bb%26%23178%3B%EF%B9%9A%E7%9A%84%E5%80%BC.3.%E5%B7%B2%E7%9F%A5m%2Cx%2Cy%2C%E6%BB%A1%E8%B6%B3%E2%91%A02%2F3%28x-5%29%26%23178%3B%2B5%E2%94%82m%E2%94%82%3D0%2C%E2%91%A1-2)
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