-3的平方*(-1/3)+(3/4-1/6+3/8)*(-24)
问题描述:
-3的平方*(-1/3)+(3/4-1/6+3/8)*(-24)
答
-3的平方*(-1/3)+(3/4-1/6+3/8)*(-24)
=-9*(-1/3) -(3/4-1/6+3/8)*24
=9*(1/3)-[(3/4)*24-(1/6)24+(3/8)*24]
=3-(18-4+9)
=3-23
=-20