(-a-2a²)²
=(a+2a²)²
=a²+4a³+4a的4次方
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用乘法公式化簡(jiǎn)(-a-2a²)²
用乘法公式化簡(jiǎn)(-a-2a²)²
其他人氣:123 ℃時(shí)間:2020-10-01 00:23:33
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