Question

$\\ \textbf{Factorise by completing the square} \\ \\ {y}^{4} + 5{y}^{2} + 9 \\ \\ \textbf{Answer : } = \bold{({y}^{2}+y+3)({y}^{2}-y+3)} \\ \\ NEED \: SOLUTION$​

Answer 1

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Answer 2

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