Precalculus Examples

$\frac{\log (x^{3}) + \log (x^{4})}{\log (50 x)} = 6$

Step 1

For logarithmic equations, $\log_{b} (x) = y$ is equivalent to $b^{y} = x$ such that $x > 0$ , $b > 0$ , and $b \neq 1$ . In this case, $b = 10$ , $x = 50 x$ , and $y = 6$ .

$b = 10$

$x = 50 x$

$y = 6$

Step 2

Substitute the values of $b$ , $x$ , and $y$ into the equation $b^{y} = x$ .

$10^{6} = 50 x$