Question

x⁴+y⁴-3x²y² Factorize​

Answer 1

Answer:

$x^4+y^4-3x^2y^2\\\\x^4+y^4-2x^2y^2-x^2y^2\\\\(x^2-y^2)^2-x^2y^2\\\\(x^2-y^2)^2-(xy)^2\\\\(x^2-y^2+xy)(x^2-y^2-xy)\\\\((x+y)(x-y)+xy)((x+y)(x-y)-xy)$

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