计算:(3a的平方+2a+1)-(2a的平方+3a-5)的结果是
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 10:44:47
![计算:(3a的平方+2a+1)-(2a的平方+3a-5)的结果是](/uploads/image/z/135319-31-9.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%883a%E7%9A%84%E5%B9%B3%E6%96%B9%2B2a%2B1%EF%BC%89-%EF%BC%882a%E7%9A%84%E5%B9%B3%E6%96%B9%2B3a-5%EF%BC%89%E7%9A%84%E7%BB%93%E6%9E%9C%E6%98%AF)
x){nu~OqY-Own~6mQ=@a#$aD]S0Py6cMR>5/{H
akgVkd'jB$@Dm3=<;CmR
5QMd*vCI7.PD
F@\d2]
`
F@$e`m
`QI(uau׳{uyڿCaP1GRSl7"ְR ifzs
计算:(3a的平方+2a+1)-(2a的平方+3a-5)的结果是
计算:(3a的平方+2a+1)-(2a的平方+3a-5)的结果是
计算:(3a的平方+2a+1)-(2a的平方+3a-5)的结果是
(3a的平方+2a+1)-(2a的平方+3a-5)
=3a^2+2a+1-2a^2-3a+5
=a^2-a+6.
:(3a的平方+2a+1)-(2a的平方+3a-5)
=a²-a+6
(3a的平方+2a+1)-(2a的平方+3a-5)
=a的平方-a+6
(3 a ² + 2 a + 1 - (2 a ² + 3 a - 5)
= (3 - 2)a ² + (2 - 3)a + 1 - (- 5)
= a ² - a + 6
拆开括号:
=3a^2+2a+1-2a^2-3a+5
=a^2-a+6
a的平方-a+6
(3a²+2a+1)-(2a²+3a-5)
=3a²+2a+1-2a²-3a+5
=a²-a+6.
=3a^2+2a+1-2a^2-3a+5
=a^2-a+6.