学习网解初三数学根号加减根号2加根号8加3倍根号2减根号24等于多少?
问题描述:
学习网解初三数学根号加减根号2加根号8加3倍根号2减根号24等于多少?
答
根号2加根号8加3倍根号2减根号24
=√2+√8+3√2-√24
=√2+2√2+3√2-2√6
=(1+2+3)√2-2√6
=6√2-2√6