(5-2)二次方,等于几

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/07 02:12:00
(5-2)二次方,等于几

(5-2)二次方,等于几
(5-2)二次方,等于几

(5-2)二次方,等于几
(5-2)^2=3^2=9

永远是=(3)^2
=9

(5-2)²
原式=(5-2)(5-2)
=5 * (5-2)-2 * (5-2)
=25-10-10+4
=9