Question

A fração é igual a:

a) 1
b) -11/6
c) 2
d) -5/2
c) 7/4

Answer 1

$\frac{2^{98}+4^{50}-8^{34}}{2^{99}-32^{20}+2^{101}} =\\\\ \frac{2^{98}+(2^2)^{50}-(2^3)^{34}}{2^{99}-(2^5)^{20}+2^{101}}=\\\\ \frac{2^{98}\cdot(1+2^2-2^4)}{2^{98}\cdot(2-2^2+2^3)} \\\\ \frac{1+2^2-2^4}{2-2^2+2^3}\\\\ \frac{1+4-16}{2-4+8} \\\\ \frac{5-16}{-2+8} \\\\ \boxed{\boxed{\frac{-11}{6}\ (Letra\ B)}}$

Answer 2

Resposta:

Letra B

Explicação passo-a-passo:

5-16

-2+18= -11/6