作业帮2x的5次方·(-x²-(-2x²)³·(-2分之1x),(2×10²)³×(3×10³)²-(4×10的4次方)³,[2分之1(x-y)]³·[2(y-x)]²·[-3分之2(y-x)²]),
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/07 06:42:18
![2x的5次方·(-x²-(-2x²)³·(-2分之1x),(2×10²)³×(3×10³)²-(4×10的4次方)³,[2分之1(x-y)]³·[2(y-x)]²·[-3分之2(y-x)²]),](/uploads/image/z/11502990-54-0.jpg?t=2x%E7%9A%845%E6%AC%A1%E6%96%B9%C2%B7%28-x%26%23178%3B-%28-2x%26%23178%3B%29%26%23179%3B%C2%B7%28-2%E5%88%86%E4%B9%8B1x%29%2C%282%C3%9710%26%23178%3B%29%26%23179%3B%C3%97%283%C3%9710%26%23179%3B%29%26%23178%3B-%284%C3%9710%E7%9A%844%E6%AC%A1%E6%96%B9%29%26%23179%3B%2C%5B2%E5%88%86%E4%B9%8B1%28x-y%29%5D%26%23179%3B%C2%B7%5B2%28y-x%29%5D%26%23178%3B%C2%B7%5B-3%E5%88%86%E4%B9%8B2%28y-x%29%26%23178%3B%5D%29%2C)
2x的5次方·(-x²-(-2x²)³·(-2分之1x),(2×10²)³×(3×10³)²-(4×10的4次方)³,[2分之1(x-y)]³·[2(y-x)]²·[-3分之2(y-x)²]),
2x的5次方·(-x²-(-2x²)³·(-2分之1x),
(2×10²)³×(3×10³)²-(4×10的4次方)³,[2分之1(x-y)]³·[2(y-x)]²·[-3分之2(y-x)²]),
2x的5次方·(-x²-(-2x²)³·(-2分之1x),(2×10²)³×(3×10³)²-(4×10的4次方)³,[2分之1(x-y)]³·[2(y-x)]²·[-3分之2(y-x)²]),
(2×10²)³×(3×10³)²-(4×10的4次方)³,
=8×10^6*9×10^6-64×10^12
=72×10^12-64×10^12
=8×10^12
[2分之1(x-y)]³·[2(y-x)]²·[-3分之2(y-x)²])
=1/8(X-Y)^3*4(X-Y)^2*［-2/3(X-Y)^2］
=-1/3(X-Y)^7.