Question

factorise x^2 + 4/x^2​

Answer 1

Answer:

refer below!!!

Step-by-step explanation:

${x}^{2} + \frac{ 4 }{ {x}^{2} }$

add and subtract 4 in above ...

${x}^{2} + \frac{4}{ {x}^{2} } + 4 - 4 \\ = (x + \frac{2}{x} ) - 4 \: \: \: or (x - \frac{2}{ x} ) + 4$

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Answer 2

Answer:

x² + (4/x)² = x² + (16/x²)

                = (x⁴ +16)/x²

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Step-by-step explanation: