# Chapter P - Section P.7 - Equations - Exercise Set: 59

$\left\{0, 4\right\}$

#### Work Step by Step

Subtract $20x$ on both sides of the equation to obtain: $5x^2-20x=0$ Factor out $5x$ to obtain: $5x(x-4)=0$ Equate each factor to zero then solve each equation to obtain: $5x=0 \text{ or } x-4=0 \\x=\frac{0}{5} \text{ or } x-4=0 \\x=0 \text{ or } x=4$ Thus, the solution set of the given equation is $\left\{0, 4\right\}$.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.