Factorize x^4+5x^2+9 – InterviewSolution

1.

Factorize x^4+5x^2+9

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Answer:

The expression is x4 + 5x2 + 9. ADD and subtract x2. This is in the form of a2 - b2 which is equal to (a + b) (a - b) where a = x2 + 3 and b = x.

Step-by-step explanation:

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