给出三个多项式2a²+3ab+b²,3a²+3ab,a²+ab,请你任选两个进行加(或减)法运算,再将结果分解因式.已知a+b=2,ab=2,求1/2a³b+a²b²+1/2ab³的值.
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![给出三个多项式2a²+3ab+b²,3a²+3ab,a²+ab,请你任选两个进行加(或减)法运算,再将结果分解因式.已知a+b=2,ab=2,求1/2a³b+a²b²+1/2ab³的值.](/uploads/image/z/8728755-51-5.jpg?t=%E7%BB%99%E5%87%BA%E4%B8%89%E4%B8%AA%E5%A4%9A%E9%A1%B9%E5%BC%8F2a%26%23178%3B%EF%BC%8B3ab%EF%BC%8Bb%26%23178%3B%2C3a%26%23178%3B%EF%BC%8B3ab%2Ca%26%23178%3B%EF%BC%8Bab%2C%E8%AF%B7%E4%BD%A0%E4%BB%BB%E9%80%89%E4%B8%A4%E4%B8%AA%E8%BF%9B%E8%A1%8C%E5%8A%A0%EF%BC%88%E6%88%96%E5%87%8F%EF%BC%89%E6%B3%95%E8%BF%90%E7%AE%97%2C%E5%86%8D%E5%B0%86%E7%BB%93%E6%9E%9C%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F.%E5%B7%B2%E7%9F%A5a%2Bb%3D2%2Cab%3D2%2C%E6%B1%821%2F2a%26%23179%3Bb%2Ba%26%23178%3Bb%26%23178%3B%2B1%2F2ab%26%23179%3B%E7%9A%84%E5%80%BC.)
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