Question

Tính

a) \(\dfrac{\left(3\times4\times2^{16}\right)^2}{\left(11\times2^{13}\times4^{11}\right)}\)

b) \(\left(-1\right)^{2017}-\left(-8\right)^2+7^3:7^2\)

mnguoi giúp mìh vs mai mìh phải đi hk thêm rùi

Answer 1

b,(-1)²⁰¹⁷ -(-8)²+7³:7²

=(-1)-64+7

=-65+7

= -58

Answer 2

a) \(\dfrac{\left(3\times4\times2^{16}\right)^2}{\left(11\times2^{13}\times4^{11}\right)}\) = \(\dfrac{3^2\times2^4\times2^{32}}{11\times2^{13}\times2^{22}}\) = \(\dfrac{9\times2^{36}}{11\times2^{35}}\) = \(\dfrac{9\times2}{11}\) = \(\dfrac{18}{11}\)

b) \(\left(-1\right)^{2017}-\left(-8\right)^2+7^3:7^2\) = \(-1-64+7\) = \(-58\)