化简:根号27减根号45减根号20加根号75

问题描述:

化简:根号27减根号45减根号20加根号75

8倍根号3减5倍根号5

化简就等于8倍根3减5倍根5

√27-√45-√20+√75
=3√3-3√5-2√5+5√3
=8√3 - 5√5

√27-√45-√20+√75
=3√3-3√5-2√5+5√3
=8√3-5√5
希望对你有帮助!望采纳!谢谢!

√27-√45-√20+√75
=3√3-3√5-2√5+5√3
=8√3-5√5

√27-√45-√20+√75
=(√9*3)-(√9*5)-(√4*5)+(√25*3)
=(3√3)-(3√5)-(2√5)+(5√3)
=8√3-5√5