Algebra Examples

$\frac{5 x^{2} + 25 x}{2} \cdot \frac{4 x}{x + 5}$

Step 1

Set the denominator in $\frac{4 x}{x + 5}$ equal to $0$ to find where the expression is undefined.

$x + 5 = 0$

Step 2

Subtract $5$ from both sides of the equation.

$x = - 5$

Step 3