7ab-3a²b²+7+8ab²+3a²b²-3-7ab 算法,加急~
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![7ab-3a²b²+7+8ab²+3a²b²-3-7ab 算法,加急~](/uploads/image/z/5462341-61-1.jpg?t=7ab-3a%26%23178%3Bb%26%23178%3B%2B7%2B8ab%26%23178%3B%2B3a%26%23178%3Bb%26%23178%3B-3-7ab+%E7%AE%97%E6%B3%95%2C%E5%8A%A0%E6%80%A5%7E)
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7ab-3a²b²+7+8ab²+3a²b²-3-7ab 算法,加急~
7ab-3a²b²+7+8ab²+3a²b²-3-7ab 算法,加急~
7ab-3a²b²+7+8ab²+3a²b²-3-7ab 算法,加急~
7ab-7ab+3a²b²-3a²b²+8ab²-3+7 = 8ab²+4 这样行吗?