Question

X²+Y²=9 & X+Y=3 THAN THE VALUE OF X⁴+Y⁴=?

Answer 1

Xx + yy = 9

X = 0

Y = 3

0×0 + 3×3 = 9

0 + 3 = 3

0×0×0×0 + 3×3×3×3 = 81

Answer 2

x²+y²=9

x+y=3

(x+y)²=3²

x²+y²+2xy=9

9+2xy=9

Subtracting 9 from both sides

2xy=0

(x²+y²)²=9²

x⁴+y⁴+2x²y²=81

x⁴+y⁴+2xy(xy)=81

x⁴+y⁴+(0)(xy)=81

Thus, x⁴+y⁴=81

Hope it helps!!

Pls mark my answer brainliest!!