求-(x/3)²的系数-(x/3)²的系数[4+1.2(a-2)]元要化简为(4+1.2a-2.4)元=(1.6+1.2a)元吗
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![求-(x/3)²的系数-(x/3)²的系数[4+1.2(a-2)]元要化简为(4+1.2a-2.4)元=(1.6+1.2a)元吗](/uploads/image/z/14691242-2-2.jpg?t=%E6%B1%82-%28x%2F3%29%26%23178%3B%E7%9A%84%E7%B3%BB%E6%95%B0-%28x%2F3%29%26%23178%3B%E7%9A%84%E7%B3%BB%E6%95%B0%5B4%2B1.2%28a-2%29%5D%E5%85%83%E8%A6%81%E5%8C%96%E7%AE%80%E4%B8%BA%EF%BC%884%2B1.2a-2.4%EF%BC%89%E5%85%83%3D%EF%BC%881.6%2B1.2a%EF%BC%89%E5%85%83%E5%90%97)
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求-(x/3)²的系数-(x/3)²的系数[4+1.2(a-2)]元要化简为(4+1.2a-2.4)元=(1.6+1.2a)元吗
求-(x/3)²的系数
-(x/3)²的系数
[4+1.2(a-2)]元要化简为(4+1.2a-2.4)元=(1.6+1.2a)元吗
求-(x/3)²的系数-(x/3)²的系数[4+1.2(a-2)]元要化简为(4+1.2a-2.4)元=(1.6+1.2a)元吗
对,化简就是合并同类项.至于那个系数-1/9.