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21年最难算的二次函数压轴题，辅助线居然那么多？
2021中考数学合集16/20
App11:09![[中考数学]10秒解二次函数压轴小题，2021泸州中考](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/28d073ecc5064e44b79dae5e9a4094e8~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=202412190226052987C5AF11B9152F2891&requestFrom=704&version_code=80402&x-expires=1766082366&x-signature=c7srB6kItKWhT3MSkcD808bK80I%3D)
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