(x四次方+y四次方)²-(2x²y²)(x四次方+y四次方)²-(2x²y²)²
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(x四次方+y四次方)²-(2x²y²)(x四次方+y四次方)²-(2x²y²)²
(x四次方+y四次方)²-(2x²y²)
(x四次方+y四次方)²-(2x²y²)²
(x四次方+y四次方)²-(2x²y²)(x四次方+y四次方)²-(2x²y²)²
=(x的4次方+y的4次方+2x² y²)(x的4次方+y的4次方-2x² y²)
=(x²+y²)²(x²-y²)²
=(x²+y²)(x+y)²(x-y)²
(x四次方+y四次方)²-(2x²y²)²
=(x四次方-y四次方)²
不知道满意的答案及推荐的答案有没有验算......
(x^4+y^4)²-(2x²y²)² (x^4-y^4)² ...
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(x四次方+y四次方)²-(2x²y²)²
=(x四次方-y四次方)²
不知道满意的答案及推荐的答案有没有验算......
(x^4+y^4)²-(2x²y²)² (x^4-y^4)² (x²+y²)(x+y)²(x-y)²
x= y =(2x^4)²-(2x^4)²=0 0 0
x=2 y=1 225 225 45
x=10 y=3 98386561 98386561 902629
x=23 y=17 38541542400 38541542400 47116800
............
呵呵,N多年没有用这样原始的方式验算题目了。关于答案,应该是一目了然的。推荐的答案不知道有多少是错误的啊......那个错误的答案,居然来自一个团队
没想到竟然花了我一个小时做这样的验算
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