计算:(2ab+3b²-5)-(3ab+3b²-8)
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计算:(2ab+3b²-5)-(3ab+3b²-8)
![计算:(2ab+3b²-5)-(3ab+3b²-8)](/uploads/image/z/12451548-12-8.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%282ab%2B3b%26%23178%3B-5%29-%283ab%2B3b%26%23178%3B-8%29)
(2ab+3b²-5)-(3ab+3b²-8)
=2ab+3b^2-5-3ab-3b^2+8
=-ab+3
=2ab+3b^2-5-3ab-3b^2+8
=-ab+3
计算:(2ab+3b²-5)-(3ab+3b²-8)
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