If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Reduce rational expressions to lowest terms

You might need: Calculator


Answer two questions about the following rational expression.
start fraction, x, squared, minus, 4, divided by, 4, x, squared, minus, 8, x, end fraction
1. What is an equivalent expression in lowest terms?
2. What values of x must we exclude from the domains of the expressions?
Choose all answers that apply: