5(x+y)²-3(x+y)³+(y+x)²-8(y+x)³ 怎么样求解这样的多项式?求数学学霸解答,过程详细通俗易懂,再加点这种类型的题目,我初一
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![5(x+y)²-3(x+y)³+(y+x)²-8(y+x)³ 怎么样求解这样的多项式?求数学学霸解答,过程详细通俗易懂,再加点这种类型的题目,我初一](/uploads/image/z/9298589-5-9.jpg?t=5%28x%2By%29%26%23178%3B-3%28x%2By%29%26%23179%3B%2B%28y%2Bx%29%26%23178%3B-8%28y%2Bx%29%26%23179%3B+%E6%80%8E%E4%B9%88%E6%A0%B7%E6%B1%82%E8%A7%A3%E8%BF%99%E6%A0%B7%E7%9A%84%E5%A4%9A%E9%A1%B9%E5%BC%8F%3F%E6%B1%82%E6%95%B0%E5%AD%A6%E5%AD%A6%E9%9C%B8%E8%A7%A3%E7%AD%94%2C%E8%BF%87%E7%A8%8B%E8%AF%A6%E7%BB%86%E9%80%9A%E4%BF%97%E6%98%93%E6%87%82%2C%E5%86%8D%E5%8A%A0%E7%82%B9%E8%BF%99%E7%A7%8D%E7%B1%BB%E5%9E%8B%E7%9A%84%E9%A2%98%E7%9B%AE%2C%E6%88%91%E5%88%9D%E4%B8%80)
5(x+y)²-3(x+y)³+(y+x)²-8(y+x)³ 怎么样求解这样的多项式?求数学学霸解答,过程详细通俗易懂,再加点这种类型的题目,我初一
5(x+y)²-3(x+y)³+(y+x)²-8(y+x)³ 怎么样求解这样的多项式?
求数学学霸解答,过程详细通俗易懂,再加点这种类型的题目,我初一
5(x+y)²-3(x+y)³+(y+x)²-8(y+x)³ 怎么样求解这样的多项式?求数学学霸解答,过程详细通俗易懂,再加点这种类型的题目,我初一
5(x+y)²-3(x+y)³+(y+x)²-8(y+x)³
=5(x+y)²-3(x+y)³+(x+y)²-8(x+y)³
=6(x+y)²-11(x+y)³
提取公因式,即相同的式子,得(5+1)(x+y)²+(-3-8)(x+y)³
=6(x+y)²-11(x+y)³
5(x+y)²-3(x+y)³+3(y+x)²-8(y+x)³
= 8(x+y)^2 - 11(x+y)^3
先合并同类项, 再化简吧.