Factor completely
n^4 +8n^2 + 15 =

The factor form is

Step-by-step explanation:

When it is required to factor the expression given in the problem, we have to first find a common term or terms, which will be found by either grouping the like terms or the splitting of the terms.

Now the expression that is given here is:

Now, here we will take:

Thus we will get:

Now we will do the middle term split as follows:

Substituting back , we will have:

Hence, the required factor form of the given expression will be:

step-by-step explanation:

for future students the answer is b

hope i

-lavira: )