根号50+根号32除以根号8-4

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/16 10:36:21
根号50+根号32除以根号8-4根号50+根号32除以根号8-4根号50+根号32除以根号8-4(√50+√32)/(√8-4)=(5√2+4√2)(2√2+4)/(8-16)=9√2×(2√2+4)

根号50+根号32除以根号8-4
根号50+根号32除以根号8-4

根号50+根号32除以根号8-4
(√50+√32)/(√8-4)
=(5√2+4√2)(2√2+4)/(8-16)
=9√2×(2√2+4)/(-8)
=(36+36√2)/(-8)
=-9(√2+1)/2