-7²+2(-3)²+(-6)/(-3分之1)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/03 12:31:51
![-7²+2(-3)²+(-6)/(-3分之1)²](/uploads/image/z/443966-14-6.jpg?t=-7%26%23178%3B%2B2%EF%BC%88-3%EF%BC%89%26%23178%3B%2B%EF%BC%88-6%EF%BC%89%2F%EF%BC%88-3%E5%88%86%E4%B9%8B1%EF%BC%89%26%23178%3B)
-7²+2(-3)²+(-6)/(-3分之1)²
-7²+2(-3)²+(-6)/(-3分之1)²
-7²+2(-3)²+(-6)/(-3分之1)²
-7²+2(-3)²+(-6)/(-1/3)²
=-49+18+(-6)/1/9
=-49+18-6×9
=-31-54
=-85
先算平方,在进行加减运算,结果为-85
原式=-49+2*9+(-6)*9=-49+18+(-54)=-85
-7²+2(-3)²+(-6)/(-3分之1)²= -85