计算:(a-3b)² (2a+1)² (-2xy²)·(3x²y)²(a-3b)² (2a+1)² (-2xy²)×(3x²y)²
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![计算:(a-3b)² (2a+1)² (-2xy²)·(3x²y)²(a-3b)² (2a+1)² (-2xy²)×(3x²y)²](/uploads/image/z/1998675-27-5.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%28a-3b%29%26%23178%3B+%282a%2B1%29%26%23178%3B+%28-2xy%26%23178%3B%29%C2%B7%283x%26%23178%3By%29%26%23178%3B%28a-3b%29%26%23178%3B+%282a%2B1%29%26%23178%3B+%28-2xy%26%23178%3B%29%C3%97%283x%26%23178%3By%29%26%23178%3B)
计算:(a-3b)² (2a+1)² (-2xy²)·(3x²y)²(a-3b)² (2a+1)² (-2xy²)×(3x²y)²
计算:(a-3b)² (2a+1)² (-2xy²)·(3x²y)²
(a-3b)²
(2a+1)²
(-2xy²)×(3x²y)²
计算:(a-3b)² (2a+1)² (-2xy²)·(3x²y)²(a-3b)² (2a+1)² (-2xy²)×(3x²y)²
(a-3b)²=a^2-6ab+9b^2
(2a+1)² =4a^2+4a+1
(-2xy²)×(3x²y)²
=--2xy^2*9x^4y^2
=-18x^5y^4