Problem

Is the polynomial x42x2+1 a perfect square? If yes, factorize it.

Answer

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Answer

This trinomial can be factored as (ab)2, which in this case gives (x21)2

Steps

Step 1 :First, we rewrite the polynomial as (x2)22(x2)+1

Step 2 :We notice this is a perfect square trinomial of the form a22ab+b2, where a=x2 and b=1.

Step 3 :This trinomial can be factored as (ab)2, which in this case gives (x21)2

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