Question

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

Answer 1

x = 100

Explanation:

Answer 2

the solutions are x = -100,100

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

`√(x^2)=\pm√(10^4)\\\\x=\pm10^2\\\\x=\pm100`

Therefore, the solutions are x = -100,100