Question

5 mũ 6:5 mũ 4+2 mũ 3 x 2 mũ 2-1 mũ 2025

Answer 1

\(5^6:5^4+2^3.2^2-1^{2025}\)

= \(5^2+2^5-1^{2025}\)

=25 + 32 - 1 

=56

Answer 2

\(56:5^4+2^3.2^2-1^{2025}\\ =\dfrac{56}{625}+32-1\\ =\dfrac{20056}{625}-1\\ =\dfrac{19431}{625}\)

Answer 3

`5^6 : 5^4 + 2^3 xx 2^2 - 1^2025`

`=5^2 + 2^5-1`

`= 25 + 32 - 1`

`= 57-1`

`= 56`

Công thức: 

`a^m : a^n = a^(m-n)(m≥n)`

`a^m  . a^n = a^(m+n)`