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计算; 1.-2√6+4√6-3√6 2.√25-³√4×(-2)
人气:289 ℃ 时间:2020-02-06 05:32:24
解答
-2√6+4√6-3√6
=2√6-3√6
=-√6
√25-³√4×(-2)
=5-³√2×2×(-2)
=5-(-2)
=5+2
=7
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