Question

a) -4
b) 4
c) -2
d) 0
e) 2​

Answer 1

a resposta é a (d) pelo meus calculos né

Answer 2

$(\frac{125}{8})^x=(\frac{25}{4})^{x+2}$

$(\frac{5^3}{2^3})^x=(\frac{5^2}{2^2})^{x+2}$

$(\frac{5}{2} )^{3x}=(\frac{5}{2} )^{2.(x+2)}$

$(\frac{5}{2} )^{3x}=(\frac{5}{2} )^{2x+4}$

$3x=2x+4$

$3x-2x=4$

$x=4$