解方程2x^4-13x^2+15=0
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解方程2x^4-13x^2+15=0解方程2x^4-13x^2+15=0解方程2x^4-13x^2+15=01/2*6^(1/2)-1/2*6^(1/2)5^(1/2)-5^(1/2)过程不好说清楚得
解方程2x^4-13x^2+15=0
解方程2x^4-13x^2+15=0
解方程2x^4-13x^2+15=0
1/2*6^(1/2)
-1/2*6^(1/2)
5^(1/2)
-5^(1/2)
过程不好说清楚得.
^是什么
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