1.若3xⁿy²与⅓x³y的a加b次方是同类项,那么a等于( ),b等于( ).2.已知α﹣b=5,ab=-1,求(2a+3b-2ab)-(a+4b+ab)-(3ab-2a+2b)的值.3.计算下列各式.一.3a-[5a-﹙2a-1﹚
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![1.若3xⁿy²与⅓x³y的a加b次方是同类项,那么a等于( ),b等于( ).2.已知α﹣b=5,ab=-1,求(2a+3b-2ab)-(a+4b+ab)-(3ab-2a+2b)的值.3.计算下列各式.一.3a-[5a-﹙2a-1﹚](/uploads/image/z/7827196-4-6.jpg?t=1.%E8%8B%A53x%26%238319%3By%26%23178%3B%E4%B8%8E%26%238531%3Bx%26%23179%3By%E7%9A%84a%E5%8A%A0b%E6%AC%A1%E6%96%B9%E6%98%AF%E5%90%8C%E7%B1%BB%E9%A1%B9%2C%E9%82%A3%E4%B9%88a%E7%AD%89%E4%BA%8E%EF%BC%88+%EF%BC%89%2Cb%E7%AD%89%E4%BA%8E%EF%BC%88+%EF%BC%89.2.%E5%B7%B2%E7%9F%A5%CE%B1%EF%B9%A3b%EF%BC%9D5%2Cab%EF%BC%9D%EF%BC%8D1%2C%E6%B1%82%EF%BC%882a%EF%BC%8B3b%EF%BC%8D2ab%EF%BC%89%EF%BC%8D%EF%BC%88a%EF%BC%8B4b%EF%BC%8Bab%EF%BC%89%EF%BC%8D%EF%BC%883ab%EF%BC%8D2a%EF%BC%8B2b%EF%BC%89%E7%9A%84%E5%80%BC.3.%E8%AE%A1%E7%AE%97%E4%B8%8B%E5%88%97%E5%90%84%E5%BC%8F.%E4%B8%80.3a%EF%BC%8D%5B5a%EF%BC%8D%EF%B9%992a%EF%BC%8D1%EF%B9%9A)
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