Question

(x ^4 - y^4 )+( x^2 - y^2)......... plz helppp​

Answer 1

Step-by-step explanation:

x4 + x2y2 + y4 = (x4 + 2x2y2 + y4) - x2y2 (note that one term is added and subtracted)

= (x2 + y2)2 – (xy)2, , by (4)

= [(x2 + y2) + xy] [(x2 + y2) – xy] , by (1)

= (x2 + xy + y2)(x2 –xy + y2)

Answer 2

Answer:

(x^4-y^4)+(x^2-y^2)

(x^2+y^2)(x^2-y^2)+(x^2-y^2)

(x^2-y^2)(x^2+y^2+1)