Question

logx+log(x+3)=5
x=?

Answer 1

Use the log property to combine the two logs into a single log
\(log(x(x+3))=5\)
Now use the property to change log equation into exponential one
\(x(x+3)=10^5\)
\(x^2+3x=10^5\)
\(x^2+3x-10^5=0\)
Then use quadratic formula to solve it for x.

Answer 2

got it thank you!