Question

Factorise; x⁴ + y⁴ - 11 x²y²​

Answer 1

Answer:

I really really don't know what you mean

Answer 2

Answer:

$(x^{2} -y^{2} +3xy)(x^{2} -y^{2} -3xy)$

Step-by-step explanation:

=$x^{4} +y^{4} -2x^{2} y^{2}-9x^{2} y^{2}$

=(x²)²+(y²)²-2x²y²-(3xy)²

=(x²-y²)²-(3xy)²

(a²-b²)=(a-b)(a+b)

=$(x^{2} -y^{2} +3xy)(x^{2} -y^{2} -3xy)$