This week, we learned about rationalizing expressions and equations; linear or quadratic.

We learned that denominator can’t be 0 and because of that there is restrictions, which is also called non-permissible values.

If we look at this expression

We know that x can’t be either 0 or 5 and when we factor both sides, we can see that there is a common of x-5. So, it gets canceled.

This chapter needs alot of practice with factoring.