根号32-根号50-4根号1/8
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根号32-根号50-4根号1/8根号32-根号50-4根号1/8根号32-根号50-4根号1/8原式=4√2-5√2-4*√2/4=-√2-√2=-2√2原式=4√2-5√2-4*1/4√2=-√2-
根号32-根号50-4根号1/8
根号32-根号50-4根号1/8
根号32-根号50-4根号1/8
原式=4√2-5√2-4*√2/4
=-√2-√2
=-2√2
原式=4√2-5√2-4*1/4√2
=-√2-√2
=-2√2