计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;(-2x的4次方)的4次方+2x的10次方 ·﹙-2x²﹚³-2x的4
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![计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;(-2x的4次方)的4次方+2x的10次方 ·﹙-2x²﹚³-2x的4](/uploads/image/z/1644839-71-9.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%88-x%26%23178%3By%26%23179%3B%EF%BC%89%EF%B9%A27%EF%B9%99x%26%23178%3B%EF%B9%9A%26%23178%3B%C2%B7%EF%B9%99-x%EF%B9%9A%26%23178%3B%C2%B7%EF%B9%99-y%EF%B9%9A%26%23179%3B%3B%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%88-x%26%23178%3By%26%23179%3B%EF%BC%89%EF%B9%A27%EF%B9%99x%26%23178%3B%EF%B9%9A%26%23178%3B%C2%B7%EF%B9%99-x%EF%B9%9A%26%23178%3B%C2%B7%EF%B9%99-y%EF%B9%9A%26%23179%3B%3B%EF%BC%88-2x%E7%9A%844%E6%AC%A1%E6%96%B9%EF%BC%89%E7%9A%844%E6%AC%A1%E6%96%B9%EF%BC%8B2x%E7%9A%8410%E6%AC%A1%E6%96%B9+%C2%B7%EF%B9%99-2x%26%23178%3B%EF%B9%9A%26%23179%3B-2x%E7%9A%844)
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计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;(-2x的4次方)的4次方+2x的10次方 ·﹙-2x²﹚³-2x的4
计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;
计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;(-2x的4次方)的4次方+2x的10次方 ·﹙-2x²﹚³-2x的4次方·5(-x的4次方)的3次方。
计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;计算:(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³;(-2x的4次方)的4次方+2x的10次方 ·﹙-2x²﹚³-2x的4
(-x²y³)﹢7﹙x²﹚²·﹙-x﹚²·﹙-y﹚³
=-x^2y^3+7x^4*x^2*(-y^3)
=-x^2y^3-7x^6y^3