1、(-2x²)²×(-3x)³ 2、-10xy乘(-2²y-3xy²)3、(-2x²)×(-y)+3xy×(1-三分之一x)4、3a(2a²-9a+3)-4a(2a-1) 5、(x+3)²-(x-3)²
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![1、(-2x²)²×(-3x)³ 2、-10xy乘(-2²y-3xy²)3、(-2x²)×(-y)+3xy×(1-三分之一x)4、3a(2a²-9a+3)-4a(2a-1) 5、(x+3)²-(x-3)²](/uploads/image/z/1260349-61-9.jpg?t=1%E3%80%81%28-2x%26%23178%3B%29%26%23178%3B%C3%97%28-3x%29%26%23179%3B+2%E3%80%81-10xy%E4%B9%98%EF%BC%88-2%26%23178%3By-3xy%26%23178%3B%EF%BC%893%E3%80%81%EF%BC%88-2x%26%23178%3B%EF%BC%89%C3%97%EF%BC%88-y%EF%BC%89%2B3xy%C3%97%EF%BC%881-%E4%B8%89%E5%88%86%E4%B9%8B%E4%B8%80x%EF%BC%894%E3%80%813a%EF%BC%882a%26%23178%3B-9a%2B3%EF%BC%89-4a%EF%BC%882a-1%EF%BC%89+++5%E3%80%81%EF%BC%88x%2B3%EF%BC%89%26%23178%3B-%EF%BC%88x-3%29%26%23178%3B)
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1、(-2x²)²×(-3x)³ 2、-10xy乘(-2²y-3xy²)3、(-2x²)×(-y)+3xy×(1-三分之一x)4、3a(2a²-9a+3)-4a(2a-1) 5、(x+3)²-(x-3)²
1、(-2x²)²×(-3x)³ 2、-10xy乘(-2²y-3xy²)
3、(-2x²)×(-y)+3xy×(1-三分之一x)4、3a(2a²-9a+3)-4a(2a-1) 5、(x+3)²-(x-3)²
1、(-2x²)²×(-3x)³ 2、-10xy乘(-2²y-3xy²)3、(-2x²)×(-y)+3xy×(1-三分之一x)4、3a(2a²-9a+3)-4a(2a-1) 5、(x+3)²-(x-3)²
①4x^4×(-27x^3)=-108x^7