Question

Giúp mình với !

Answer 1

16: \(=\dfrac{2^{15}\cdot3^8}{3^6\cdot2^6\cdot2^9}=3^2=9\)

17: \(=\dfrac{3}{2}-\dfrac{5}{6}:\dfrac{1}{4}+2\)

\(=\dfrac{3}{2}-\dfrac{20}{6}+2\)

\(=\dfrac{1}{6}\)

Answer 2

\(16,=\dfrac{2^{15}\cdot3^8}{2^6\cdot3^6\cdot2^9}=3^2=9\\ 17,=\dfrac{3}{2}-\dfrac{5}{6}\cdot4+2=\dfrac{1}{6}\\ 18,=\dfrac{-25+12}{13}+\dfrac{17}{3}\left(1-\dfrac{9}{17}+1-\dfrac{10}{17}\right)=-1+\dfrac{17}{3}=\dfrac{14}{3}\\ 19,=\left(\dfrac{5}{4}-\dfrac{4}{3}\right)^2\cdot144-216\left(\dfrac{3}{2}-\dfrac{4}{3}\right)^3\\ =\dfrac{1}{144}\cdot144-216\cdot\dfrac{1}{216}=1-1=0\\ 20,=9+3-2+\left(-16\right)\cdot9=9-144=-135\)