Thực hiện phép tính A = (2^9 +2^7 +1) (2^23 - 2^21 + 2^19 - 2^17

* Hướng dẫn giải

$$\begin{gathered} A=\left(2^9+2^7+1\right)\left(2^{23}-2^{21}+2^{19}-2^{17}+2^{14}-2^{10}+2^9-2^7+1\right) \\ =2^{32}+\left(2^{23}+2^{23}-2^{24}\right)+\left(2^{18}-2^{17}-2^{17}\right)+\left(2^9+2^9-2^{10}\right)+1 \\ =2^{3}2+\left({2.2}^{23}-2^{24}\right)+\left(2^{18}-{2.2}^{17}\right)+\left({2.2}^9-2^{10}\right)+1 \\ =2^{32}+1 \end{gathered}$$