简答题 1.(m+2)(m-1)-2m(m-2) 2.(x-y){3(y-x)}^2÷{1/3(y-x)^3} 3.(5×10^5)^2÷(2.5×10^3)×(-4×10^-7)^2 4.(-2x^a+1+6x^a+2-12x^a)÷(-24x^a-1)5.(-x^2)(-x^3)-2{(x^3)^3÷(-x^2)^2}6.8(x+y)^2÷2(x+y)
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![简答题 1.(m+2)(m-1)-2m(m-2) 2.(x-y){3(y-x)}^2÷{1/3(y-x)^3} 3.(5×10^5)^2÷(2.5×10^3)×(-4×10^-7)^2 4.(-2x^a+1+6x^a+2-12x^a)÷(-24x^a-1)5.(-x^2)(-x^3)-2{(x^3)^3÷(-x^2)^2}6.8(x+y)^2÷2(x+y)](/uploads/image/z/14907874-58-4.jpg?t=%E7%AE%80%E7%AD%94%E9%A2%98+1.%EF%BC%88m%2B2%EF%BC%89%EF%BC%88m-1%EF%BC%89-2m%EF%BC%88m-2%EF%BC%89+2.%EF%BC%88x-y%EF%BC%89%EF%BD%9B3%EF%BC%88y-x%EF%BC%89%EF%BD%9D%5E2%C3%B7%EF%BD%9B1%2F3%EF%BC%88y-x%29%5E3%EF%BD%9D+3.%285%C3%9710%5E5%EF%BC%89%5E2%C3%B7%EF%BC%882.5%C3%9710%5E3%29%C3%97%EF%BC%88-4%C3%9710%5E-7%29%5E2+4.%EF%BC%88-2x%5Ea%2B1%2B6x%5Ea%2B2-12x%5Ea%29%C3%B7%EF%BC%88-24x%5Ea-1%295.%28-x%5E2%29%28-x%5E3%29-2%EF%BD%9B%EF%BC%88x%5E3%29%5E3%C3%B7%EF%BC%88-x%5E2%29%5E2%EF%BD%9D6.8%EF%BC%88x%2By%EF%BC%89%5E2%C3%B72%EF%BC%88x%2By%EF%BC%89)
简答题 1.(m+2)(m-1)-2m(m-2) 2.(x-y){3(y-x)}^2÷{1/3(y-x)^3} 3.(5×10^5)^2÷(2.5×10^3)×(-4×10^-7)^2 4.(-2x^a+1+6x^a+2-12x^a)÷(-24x^a-1)5.(-x^2)(-x^3)-2{(x^3)^3÷(-x^2)^2}6.8(x+y)^2÷2(x+y)
简答题
1.(m+2)(m-1)-2m(m-2) 2.(x-y){3(y-x)}^2÷{1/3(y-x)^3} 3.(5×10^5)^2÷(2.5×10^3)×(-4×10^-7)^2 4.(-2x^a+1+6x^a+2-12x^a)÷(-24x^a-1)5.(-x^2)(-x^3)-2{(x^3)^3÷(-x^2)^2}6.8(x+y)^2÷2(x+y)
简答题 1.(m+2)(m-1)-2m(m-2) 2.(x-y){3(y-x)}^2÷{1/3(y-x)^3} 3.(5×10^5)^2÷(2.5×10^3)×(-4×10^-7)^2 4.(-2x^a+1+6x^a+2-12x^a)÷(-24x^a-1)5.(-x^2)(-x^3)-2{(x^3)^3÷(-x^2)^2}6.8(x+y)^2÷2(x+y)
1.-3m^2+5m-2 2. -27 3. 16/10^6
4.8x^a-3/(24x^a+1 ) 5-x^5-2x^5 6. (x+y)/2
用计算机呀笨蛋
1.-3m^2+5m-2 2. -27 3. 16/10^6
4.8x^a-3/(24x^a+1 ) 5-x^5-2x^5 6. (x+y)/2