计算:(6m³n)•(-2mn)÷(4mn²)(4x²y-2x³)÷(-2x)²(二分之一)º×3的负二次方x²•x³+x^7÷x^2[(x-y)²+(x+y)(x-y)]÷(2x)(-四分之三b²c)÷(3b)(8×10^7)÷(-2×10³)(3m²n³)÷
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 15:59:23
![计算:(6m³n)•(-2mn)÷(4mn²)(4x²y-2x³)÷(-2x)²(二分之一)º×3的负二次方x²•x³+x^7÷x^2[(x-y)²+(x+y)(x-y)]÷(2x)(-四分之三b²c)÷(3b)(8×10^7)÷(-2×10³)(3m²n³)÷](/uploads/image/z/3914517-21-7.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%286m%26%23179%3Bn%29%26%238226%3B%28-2mn%29%C3%B7%284mn%26%23178%3B%29%284x%26%23178%3By-2x%26%23179%3B%29%C3%B7%28-2x%29%26%23178%3B%28%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%80%29%26%23186%3B%C3%973%E7%9A%84%E8%B4%9F%E4%BA%8C%E6%AC%A1%E6%96%B9x%26%23178%3B%26%238226%3Bx%26%23179%3B%2Bx%5E7%C3%B7x%5E2%5B%28x-y%29%26%23178%3B%2B%28x%2By%29%28x-y%29%5D%C3%B7%282x%29%28-%E5%9B%9B%E5%88%86%E4%B9%8B%E4%B8%89b%26%23178%3Bc%29%C3%B7%283b%29%288%C3%9710%5E7%29%C3%B7%28-2%C3%9710%26%23179%3B%29%283m%26%23178%3Bn%26%23179%3B%29%C3%B7)
计算:(6m³n)•(-2mn)÷(4mn²)(4x²y-2x³)÷(-2x)²(二分之一)º×3的负二次方x²•x³+x^7÷x^2[(x-y)²+(x+y)(x-y)]÷(2x)(-四分之三b²c)÷(3b)(8×10^7)÷(-2×10³)(3m²n³)÷
计算:(6m³n)•(-2mn)÷(4mn²)
(4x²y-2x³)÷(-2x)²
(二分之一)º×3的负二次方
x²•x³+x^7÷x^2
[(x-y)²+(x+y)(x-y)]÷(2x)
(-四分之三b²c)÷(3b)
(8×10^7)÷(-2×10³)
(3m²n³)÷(mn)²
(15x³-10x²)÷(5x)
x•(9x³y-3xy²)÷(-3x²y)
计算:(6m³n)•(-2mn)÷(4mn²)(4x²y-2x³)÷(-2x)²(二分之一)º×3的负二次方x²•x³+x^7÷x^2[(x-y)²+(x+y)(x-y)]÷(2x)(-四分之三b²c)÷(3b)(8×10^7)÷(-2×10³)(3m²n³)÷
(1)(6m³n)×(-2mn)÷(4mn²)
=-3m^(3+1-1)n^1+1-2)
=-3m³
(2)(4x²y-2x³)÷(-2x)²
=(4x²y-2x³)÷(4x²)
=y-1/2 x
(3)(4x²y-2x³)÷(-2x)²
=(4x²y-2x³)÷(4x²)
=y-1/2 x
(4)(1/2)的0次方×3的-2次方
=1×1/9
=1/9
(5)x²×x³+x的7次方÷x²
=x^5+x^5
=2x^5
(6)[(x-y)²+(x+y)(x-y)]÷2x
=(x²-2xy+y²+x²-y²)÷2x
=(2x²-2xy)÷2x
=x-y
(6m³n)•(-2mn)÷(4mn²)=-3m³