Question

6 more please help me check them .

Answer 1

I can tell you this the one indicated on that link is incorrect. There is some work to this problem, if you are interested in learning you will work them.

These are polynomial fractions. The same rules for adding or subtraction of fractions still apply as you learned in grade school. you must determine the common denominator. The Lowest Common Denominator (LCD) I hope that rings a memory bell. To determine this it is easier to reduce the fractions as much as possible.

In this case all of the numerators and denominators can be factored. Do that and reduce the fractions as much as possible. After that, convert the fractions to fractions that have the lowest common denominator. Then combine paying close attention to signs. You will then get the best answer which is one of your options on the link.