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2020年高考数学题：5x²y²+y⁴=1，求x²+y²的最小值，用配凑法
2020年高考数学题：5x²y²+y⁴=1，求x²+y²的最小值，用配凑法
高考数学必刷题25/30
App02:10![[超高清4K]：1977年高考题：分解因式：x⁴-2x²y-3y²+8y-4](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/c303403171c94fe7b55fc078deac94c4~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501181843050B792D63FA82420A01C2&requestFrom=704&version_code=80402&x-expires=1768732986&x-signature=0OL1%2FgdeLwv%2Fq%2F811IO6HNV3BIw%3D)
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