The reason you are getting '2p^4-5p^2+6p^3' in the result is that you have typed in one expression, so the GCF of one expression is the expression itself.

If you need to find GCF for 2p^4, 5p^2 and 6p^3 you need to type them down and use "," to separate multiple expressions. This way you will get the result GCF(2p^4, 5p^2, 6p^3) = p^2

Click here to see the step by step solution:

Keep in mind that you can obtain an explanation for any step by clicking on it. Please note that you cannot click on the very first expression, which is the original problem.