0.8X(2.3-1.17)X1.25X(3.27+0.73)
问题描述:
0.8X(2.3-1.17)X1.25X(3.27+0.73)
答
0.8*(2.3-1.17)*1.25*(3.27+0.73)
=(2.3-1.17)*(3.27+0.73)
=1.13*4
=4.52