1、(-2xy的n+1次方)²(-3xn+1次方y²)³2、(25x²+15x³y-20x的4次方)÷(-5x²)
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![1、(-2xy的n+1次方)²(-3xn+1次方y²)³2、(25x²+15x³y-20x的4次方)÷(-5x²)](/uploads/image/z/1672784-8-4.jpg?t=1%E3%80%81%EF%BC%88-2xy%E7%9A%84n%2B1%E6%AC%A1%E6%96%B9%EF%BC%89%26%23178%3B%EF%BC%88-3xn%2B1%E6%AC%A1%E6%96%B9y%26%23178%3B%EF%BC%89%26%23179%3B2%E3%80%81%2825x%26%23178%3B%2B15x%26%23179%3By-20x%E7%9A%844%E6%AC%A1%E6%96%B9%29%C3%B7%28-5x%26%23178%3B%29)
1、(-2xy的n+1次方)²(-3xn+1次方y²)³2、(25x²+15x³y-20x的4次方)÷(-5x²)
1、(-2xy的n+1次方)²(-3xn+1次方y²)³
2、(25x²+15x³y-20x的4次方)÷(-5x²)
1、(-2xy的n+1次方)²(-3xn+1次方y²)³2、(25x²+15x³y-20x的4次方)÷(-5x²)
1、(-2xy的n+1次方)²(-3xn+1次方y²)³
=(4x²y的2n+2次方)(-27x的3n+3次方y的6次方)
=-108x的3n+5次方y的2n+8次方
2、(25x²+15x³y-20x的4次方)÷(-5x²)
=-5-3xy+4x²