Question

Se 2^n = 15 e 2^p = 20, o valor de 2^n–^p+^3 é:
a) 6
b) 8
c) 14
d) 16

Answer 1

$2^{n-p+3}= \dfrac{2^n.2^3}{2^p} = \dfrac{15.8}{20} = \dfrac{120}{20} =6$