Question

what is the formula of x⁴+y⁴​

Answer 1

x⁴+y⁴= (x²)²+ (y²)²

= we know ,

x²+y²=( x+y )²-2xy

so like that,

(x²)²+(y²)²= ( x²+y² )²- 2x²y²

Answer 2

Answer:

ok,

sol:

x⁴ + y⁴

= x⁴ + y⁴ + 2x²y² - 2x²y²

= (x² + y²)² - 2x² y²

= [x² + y² + √(2)xy] [x² + y² - √(2)xy]