Tính: ( $\frac{2}{5}$) $^{2}$ + 5$\frac{1}{2}$. (4,5-2)+ $\frac{2$x^{3}$ }{(-4)}$ 30/10/2021 Bởi Ayla Tính: ( $\frac{2}{5}$) $^{2}$ + 5$\frac{1}{2}$. (4,5-2)+ $\frac{2$x^{3}$ }{(-4)}$
`(2/5)^2+5 1/2 *(4,5-2)+(2^3)/-4`
`=4/25+11/2 *5/2-2`
`=4/25+55/4-2`
`=1591/100`