tolong bantu ya tugas hari senin

x = 1,, y = 4

(x 2/3 • y -4/3/y 2/3 • x²) =
(ganti x dengan 1,, dan y dgn 4)

(1 2/3×4 -4/3 / 4 2/3×1²)=
-2/3×4×4/3 / 4×2/3×1 =
-4/3 =
-1 1/3