Question

$\frac{40^{n+5} }{2^{3n+11}*5^{n+4}}$
Сократить

Answer 1

(2^3*5)^(n+5) / (2^(3n+11) * 5^(n+4))=
2^(3n+15-3n-11) * 5^(n+5-n-4)=2^4 * 5= 16*5=80

Answer 2

$\frac{40^{n+5} }{2^{3n+11}*5^{n+4}} =\frac{(5*8)^{n+5} }{2^{3n+11}*5^{n+4}} = \\ \\ \frac{5^{n+5}*2^{3n+15} }{2^{3n+11}*5^{n+4}} = 5^{n+5-n-4} * 2^{3n+15-3n-11} =5*2^4=5*16=80$