用一元二次解,说明理由 (12 19:20:11)现在有长方形纸片一张,长19㎝,宽15㎝.需要剪去边长是多少的正方形才能将其做成底面积为81㎝的无盖长方形纸盒.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/31 03:49:48
![用一元二次解,说明理由 (12 19:20:11)现在有长方形纸片一张,长19㎝,宽15㎝.需要剪去边长是多少的正方形才能将其做成底面积为81㎝的无盖长方形纸盒.](/uploads/image/z/4108184-8-4.jpg?t=%E7%94%A8%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E8%A7%A3%2C%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1+%2812+19%3A20%3A11%29%E7%8E%B0%E5%9C%A8%E6%9C%89%E9%95%BF%E6%96%B9%E5%BD%A2%E7%BA%B8%E7%89%87%E4%B8%80%E5%BC%A0%2C%E9%95%BF19%E3%8E%9D%2C%E5%AE%BD15%E3%8E%9D.%E9%9C%80%E8%A6%81%E5%89%AA%E5%8E%BB%E8%BE%B9%E9%95%BF%E6%98%AF%E5%A4%9A%E5%B0%91%E7%9A%84%E6%AD%A3%E6%96%B9%E5%BD%A2%E6%89%8D%E8%83%BD%E5%B0%86%E5%85%B6%E5%81%9A%E6%88%90%E5%BA%95%E9%9D%A2%E7%A7%AF%E4%B8%BA81%E3%8E%9D%E7%9A%84%E6%97%A0%E7%9B%96%E9%95%BF%E6%96%B9%E5%BD%A2%E7%BA%B8%E7%9B%92.)
xSn@)R{fd~DVRuEPD 7J jU'cV^M쪮sgι9Xiut}2쯇i*W)L|X%hiVЃ}ٻ״w.o
?TXdJ;_Xun{,vhg+U;WΠ~V`r5Xmֵ2/OCb njV9/[Opڃn
nbm_p#gSGsG;ۏ sG[n6ى ap$ dVg%r{x-O,Z:y~ _zIMĖS