Question

(x^2-y^2)^2+(x^2+y^2)^2​

Answer 1

Step-by-step explanation:

(x²-y²)²+(x²+y²)²

((x²)²-(y²)²)²×²

(x⁴-y⁴)⁴

Answer 2

Step-by-step explanation:

(x²-y²)²+(x²+y²)²

(x²)²-2(x²y²)+(y²)²+(x²)²+2(x²y²)+(y²)²

x⁴+y⁴+x⁴+y⁴

2x⁴+2y⁴

2(x⁴+y⁴)