Question

Answer 1

\(\left(-0,2\right)^2\cdot5-\dfrac{8^2\cdot9^5}{3^9\cdot4^3}\)

\(=0,04\cdot5-\dfrac{2^6\cdot3^{10}}{3^9\cdot2^6}\)

\(=0,2-\)3

=-2,8

Answer 2

Mọi người giúp em với ạ :((

Answer 3

\(\left(-0,2\right)^2.5-\dfrac{8^2.9^5}{3^9.4^3}=0,04.5-\dfrac{\left(2^3\right)^2.\left(3^2\right)^5}{3^9.\left(2^2\right)^3}=0,2-\dfrac{2^6.3^{10}}{3^9.2^6}=0,2-3=-2,8\)