根号50乘根号8再减去21化简

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根号50乘根号8再减去21化简根号50乘根号8再减去21化简根号50乘根号8再减去21化简√50*√8-21=5√2*2√2-21=10*2-21=20-21=-1√50*√8-21=√400-21=

根号50乘根号8再减去21化简
根号50乘根号8再减去21化简

根号50乘根号8再减去21化简
√50*√8-21
=5√2*2√2-21
=10*2-21
=20-21
=-1

√50*√8-21
=√400-21
=20-21
=-1

-1