因式分解:m²-4m 计算:(a+3b)(a-3b)
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![因式分解:m²-4m 计算:(a+3b)(a-3b)](/uploads/image/z/2098797-69-7.jpg?t=%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%3Am%26%23178%3B-4m+%E8%AE%A1%E7%AE%97%3A%EF%BC%88a%2B3b%29%EF%BC%88a-3b%EF%BC%89)
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因式分解:m²-4m 计算:(a+3b)(a-3b)
因式分解:m²-4m 计算:(a+3b)(a-3b)
因式分解:m²-4m 计算:(a+3b)(a-3b)
m(m-4)
a²-9b²
收起
(m-2)²-4
a²-9b²
(m-2) ²-4 a²—9b²