求帮忙把以下几个数学公式写出具体计算步骤求解(a-1/2)^2(a^2+1/4)^2(a+1/2)^2=a^8-1/8a^4+1/256(-3/4X^6Y^3+6/5X^3Y^4-9/10XY^5)除以3/5XY^3=-5/4X^5+2X^2Y-3/2Y^2X^M- 1/2X^m+1 - 1/5X^m + X^m+1 - 2X^m+1 = 4/5X^m- 3/2X^m+1我发
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![求帮忙把以下几个数学公式写出具体计算步骤求解(a-1/2)^2(a^2+1/4)^2(a+1/2)^2=a^8-1/8a^4+1/256(-3/4X^6Y^3+6/5X^3Y^4-9/10XY^5)除以3/5XY^3=-5/4X^5+2X^2Y-3/2Y^2X^M- 1/2X^m+1 - 1/5X^m + X^m+1 - 2X^m+1 = 4/5X^m- 3/2X^m+1我发](/uploads/image/z/12383497-1-7.jpg?t=%E6%B1%82%E5%B8%AE%E5%BF%99%E6%8A%8A%E4%BB%A5%E4%B8%8B%E5%87%A0%E4%B8%AA%E6%95%B0%E5%AD%A6%E5%85%AC%E5%BC%8F%E5%86%99%E5%87%BA%E5%85%B7%E4%BD%93%E8%AE%A1%E7%AE%97%E6%AD%A5%E9%AA%A4%E6%B1%82%E8%A7%A3%EF%BC%88a-1%2F2%EF%BC%89%5E2%EF%BC%88a%5E2%2B1%2F4%EF%BC%89%5E2%28a%2B1%2F2%29%5E2%3Da%5E8-1%2F8a%5E4%2B1%2F256%28-3%2F4X%5E6Y%5E3%2B6%2F5X%5E3Y%5E4-9%2F10XY%5E5%29%E9%99%A4%E4%BB%A53%2F5XY%5E3%3D-5%2F4X%5E5%2B2X%5E2Y-3%2F2Y%5E2X%5EM-+1%2F2X%5Em%2B1+-+1%2F5X%5Em+%2B+X%5Em%2B1+-+2X%5Em%2B1+%3D+4%2F5X%5Em-+3%2F2X%5Em%2B1%E6%88%91%E5%8F%91)
求帮忙把以下几个数学公式写出具体计算步骤求解(a-1/2)^2(a^2+1/4)^2(a+1/2)^2=a^8-1/8a^4+1/256(-3/4X^6Y^3+6/5X^3Y^4-9/10XY^5)除以3/5XY^3=-5/4X^5+2X^2Y-3/2Y^2X^M- 1/2X^m+1 - 1/5X^m + X^m+1 - 2X^m+1 = 4/5X^m- 3/2X^m+1我发
求帮忙把以下几个数学公式写出具体计算步骤
求解(a-1/2)^2(a^2+1/4)^2(a+1/2)^2=a^8-1/8a^4+1/256
(-3/4X^6Y^3+6/5X^3Y^4-9/10XY^5)除以3/5XY^3=-5/4X^5+2X^2Y-3/2Y^2
X^M- 1/2X^m+1 - 1/5X^m + X^m+1 - 2X^m+1 = 4/5X^m- 3/2X^m+1
我发现现在这辅导书真精简啊~
求帮忙把以下几个数学公式写出具体计算步骤求解(a-1/2)^2(a^2+1/4)^2(a+1/2)^2=a^8-1/8a^4+1/256(-3/4X^6Y^3+6/5X^3Y^4-9/10XY^5)除以3/5XY^3=-5/4X^5+2X^2Y-3/2Y^2X^M- 1/2X^m+1 - 1/5X^m + X^m+1 - 2X^m+1 = 4/5X^m- 3/2X^m+1我发
1、利用平方差公式,完全平方式展开
(a-1/2)^2(a^2+1/4)^2(a+1/2)^2=(a-1/2)^2 * (a+1/2)^2 *(a^2+1/4)^2
=(a^2-1/4)^2 *(a^2+1/4)^2 平方差公式
=(a^4 -1/16)^2 平方差公式
=a^8-1/8a^4+1/256 完全平方式展开
2、利用 a^m/a^n =a^(n-m),将式子拆开来算,就是结果
(-3/4X^6Y^3+6/5X^3Y^4-9/10XY^5)/ [3/5XY^3 ]
=[-3/4X^6Y^3)] / [3/5XY^3 ] +[6/5X^3Y^4] / [3/5XY^3 ] - [9/10XY^5)] / [3/5XY^3 ]
=...
3、合并同类项
X^M- 1/2X^m+1 - 1/5X^m + X^m+1 - 2X^m+1
= X^M - 1/5X^m - 1/2X^m+1 + X^m+1 - 2X^m+1
=(1-1/5)X^M +(-1/2 + 1-2)X^(M+1)
=4/5X^m- 3/2X^(m+1)
题目看不懂,能打的清楚点吗 你照片拍下来好了,用摄像头就行
1、
(a-1/2)^2(a^2+1/4)^2(a+1/2)^2=(a-1/2)^2 * (a+1/2)^2 *(a^2+1/4)^2
=(a^2-1/4)^2 *(a^2+1/4)^2
=(a^4 -1/16)^2
=a^8-1/8a^4+1/256
2、
(-3/4X^6Y^...
全部展开
1、
(a-1/2)^2(a^2+1/4)^2(a+1/2)^2=(a-1/2)^2 * (a+1/2)^2 *(a^2+1/4)^2
=(a^2-1/4)^2 *(a^2+1/4)^2
=(a^4 -1/16)^2
=a^8-1/8a^4+1/256
2、
(-3/4X^6Y^3+6/5X^3Y^4-9/10XY^5)/ [3/5XY^3 ]
=[-3/4X^6Y^3)] / [3/5XY^3 ] +[6/5X^3Y^4] / [3/5XY^3 ] - [9/10XY^5)] / [3/5XY^3 ]
=...
3、
X^M- 1/2X^m+1 - 1/5X^m + X^m+1 - 2X^m+1
= X^M - 1/5X^m - 1/2X^m+1 + X^m+1 - 2X^m+1
=(1-1/5)X^M +(-1/2 + 1-2)X^(M+1)
=4/5X^m- 3/2X^(m+1)
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