Question

factorise x⁴+y⁴-11x²y²​

Answer 1

Step-by-step explanation:

${x}^{4} + {y}^{4} - 11 {x}^{2} {y}^{2} \\ = { {x}^{2} }^{2} + { {y}^{2} }^{2} - 2 {x}^{2} {y}^{2} - 9 {x}^{2} {y}^{2} \\ = {( {x}^{2} + {y}^{2} ) }^{2} - {3xy}^{2} \\ = ( {x}^{2} + {y}^{2} - 3xy)( {x}^{2} + {y}^{2} + 3xy)$

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Answer 2

Answer:

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