2mn﹙2b-a²﹚+3m²n﹙a²-2b﹚

相关推荐

• 求单项式2m^2n、-2^3mn^2、-3m^2n、(-3)2mn^2的和急
• 初二整式除法四道题,速速速速速速速速速1：化简求值：[(3m+4n)²-3m(3m+4n)]÷（-6m）,其中m=1,n=32：已知m-2n=3,求[(3m+2n)(3m-2n)-(m+2n)(5m-2n)]÷1/3m的值3：已知2a-b=5.求[(a²+b²)+2b(a-b)-(a-b)²]÷4b的值4：已知x²+x+1=0,求x³-x²-x+7的值
• 1,已知2m-4n=0求3m²-n²÷（分数线）m²+2mn的值 下还有2题2.已知1/a-1/b=5,求2a+19ab-2b/b-3ab-a的值3.如果a/b（表示b分之a = a÷b),那么a+b/b和c+d/d 是否相等?试证明理由!
• 1,已知2m-4n=0求3m²-n²÷（分数线）m²+2mn的值 下还有2题
• (2mn)平方乘以(m平方+n平方)-(m平方n平方)立方÷m立方n4次方+3m平方n4次方
• 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)
• 2mn﹙2b-a²﹚+3m²n﹙a²-2b﹚
• 求单项式2m^2n、-2^3mn^2、-3m^2n、(-3)2mn^2的和
• (2mn)平方乘以(m平方+n平方)-(m平方n平方)立方÷m立方n4次方+3m平方n4次方
• 1.已知x^m=4,x^n=8,求x^3m*x^3n+x^3m-n的值 2.计算:(1)-3(a-b)^2*[2(a-b)^2]*[2/3(a-b)] 3.(3a^2+1/2b)(3a
• This work report in which the idea was pushed forward with is highly spoken of by the public.
• 流体在长方形截面的管道中流流动的平均速度怎么计算?阻力系数怎么算?