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九上数学计算题 √8a³-2a²√1/8a+3√2a³ (√6-√3/2﹚-﹙√24+2√2/3﹚咋写
(1)√8a³-2a²√1/8a+3√2a³
(2 )(√6-√3/2﹚-﹙√24+2√2/3﹚
人气:332 ℃ 时间:2020-03-27 06:14:17
解答
√8a³-2a²√1/8a+3√2a³
=2a√2a-1/2√2a+3a√2a
=9/2a√2a
(√6-√3/2﹚-﹙√24+2√2/3﹚
=√6-1/2√6-2√6-2/3√6
=(1-1/2-2-2/3)√6
=-13/6√6
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