Factorization، please help


What help do you need? Have you tried squaring x, and so on? And how is this about factorization?

Please show whatever work you have done, so we can see where you are stuck:
 
Square x, then add 3 and multiply that sum my x. That is do a the problem tells you to do.

Show us your work so we know where you might be making any mistakes.
 
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