化简(5a²+2a)-4(2+2a²).

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/14 11:44:10

化简(5a²+2a)-4(2+2a²).

=5a^2+2a-8-8a^2
=-3a^2+2a-8

(5a²+2a)-4(2+2a²)
=5a^2+2a-8-8a^2
=(5-8)a^2+2a-8
=-3a^2+2a-8