2t²+3t²-(3t²+5t-t²)

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/07 01:30:19

2t²+3t²-(3t²+5t-t²)
2t²+3t²-(3t²+5t-t²)

2t²+3t²-(3t²+5t-t²)
2t²+3t²-(3t²+5t-t²)
=2t²+3t²-3t²-5t+t²
=3t²-5t

2t²+3t²-(3t²+5t-t²)=5t²-(2t²+5t)=5t²-2t²-5t=3t²-5t