Question

Solve log x2 + 1 = 5. Round to the nearest thousandth if necessary.

Answer 1

Answer:

the solutions are x = -100,100

Step-by-step explanation:

The given logarithmic equation is $\log x^2 +1=5$

Subtract 1 to both sides

$\log x^2=4$

Remove logarithm, we get

$x^2=10^4$

Take square root both sides

$\sqrt{x^2}=\pm\sqrt{10^4}\\\\x=\pm10^2\\\\x=\pm100$

Therefore, the solutions are x = -100,100

Answer 2

Answer:

x = 100

Step-by-step explanation: