计算﹙5-2y﹚﹙4y²+25+10y﹚

问题描述:

计算﹙5-2y﹚﹙4y²+25+10y﹚

﹙5-2y﹚﹙4y²+25+10y﹚
=20y²+125+50y-8y³-50y-20y²
=-8y³+125