Question

11. factorise this x⁴+6x²y²+8y⁴​

Answer 1

I think your question must be, x⁴+6x²y²+9y⁴

Then, only answer would come,i.e, (x^2+y^2) .

Answer 2

Answer:

x⁴+6x²y²+8y⁴

=x⁴+4x²y²+2x²y²+8y⁴

=x²(x²+4y²)+2y²(x²+4y²)

=(x²+4y²)(x²+2y²)