Question

Qual o valor de x?
5^(x+2) = 1
a)x = 0
b)x = - 1
c)x = 1
d)x = - 2

Answer 1

Resposta:

d) x = -2

Explicação passo a passo:

$5^{\left(x+2\right)}=1$

$\left(x+2\right)\ln \left(5\right)=\ln \left(1\right)$

$x=-2$

Answer 2

$\Huge \sf 5^{(x+2)} =1 \dfrac {} {}$

$\Huge \sf 5^{x+2} =5^{0} \dfrac {} {}$

$\Huge \sf x+2=0 \dfrac {} {}$

$\Huge \sf x = -2 \dfrac {} {}$