把二次三项式m²-5m/6+1/6分解因式的结果如下:①(m-1/6)(m-1);②(m-1/2)(m-1/3)③1/2(2m-1)(m-1/3);④1/6(2m-1)(m-1/3).其中正确的个数为多少
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![把二次三项式m²-5m/6+1/6分解因式的结果如下:①(m-1/6)(m-1);②(m-1/2)(m-1/3)③1/2(2m-1)(m-1/3);④1/6(2m-1)(m-1/3).其中正确的个数为多少](/uploads/image/z/7274922-42-2.jpg?t=%E6%8A%8A%E4%BA%8C%E6%AC%A1%E4%B8%89%E9%A1%B9%E5%BC%8Fm%26%23178%3B-5m%2F6%2B1%2F6%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%E7%9A%84%E7%BB%93%E6%9E%9C%E5%A6%82%E4%B8%8B%EF%BC%9A%E2%91%A0%28m-1%2F6%29%28m-1%29%3B%E2%91%A1%28m-1%2F2%29%28m-1%2F3%29%E2%91%A21%2F2%282m-1%29%28m-1%2F3%29%3B%E2%91%A31%2F6%282m-1%29%28m-1%2F3%29.%E5%85%B6%E4%B8%AD%E6%AD%A3%E7%A1%AE%E7%9A%84%E4%B8%AA%E6%95%B0%E4%B8%BA%E5%A4%9A%E5%B0%91)
把二次三项式m²-5m/6+1/6分解因式的结果如下:①(m-1/6)(m-1);②(m-1/2)(m-1/3)③1/2(2m-1)(m-1/3);④1/6(2m-1)(m-1/3).其中正确的个数为多少
把二次三项式m²-5m/6+1/6分解因式的结果如下:①(m-1/6)(m-1);②(m-1/2)(m-1/3)③1/2(2m-1)(m-1/3);
④1/6(2m-1)(m-1/3).其中正确的个数为多少
把二次三项式m²-5m/6+1/6分解因式的结果如下:①(m-1/6)(m-1);②(m-1/2)(m-1/3)③1/2(2m-1)(m-1/3);④1/6(2m-1)(m-1/3).其中正确的个数为多少
m²-5m/6+1/6
=(m-1/3)(m-1/2)
②对
m²-5m/6+1/6
=1/6(6m²-5m+1)
=1/6(3m-1)(2m-1)
=1/2(m-1/3)(2m-1)
③对
④错
2个对