Question

Tính nhanh:

(10⁵+15⁵-5⁵) : 5³

Answer 1

\(\left(10^5+15^5-5^5\right):5^3\)

\(=\left(10+15-5\right)^5:5^3\)

\(=20^5:5^3\)

\(=25600\)

Answer 2

\(=\left(2^5\cdot5^5+3^5\cdot5^5-1\cdot5^5\right):5^3\)

\(=5^3\cdot\left(2^5\cdot5^2+3^5\cdot5^2-5^2\right):5^3\)

\(=800+6075-25=6850\)

Answer 3

nHẦM

Answer 4

=2⁵.5²+3⁵.5²-5²=5²(2⁵+3⁵-1)=25.259=6475

Answer 5

6850