bantu no 1-2 nya sekalian sama jalan nya

Smoga membantu. Beri tanggapan dn like

1) (3^2 . x^4 . y^-2)/(6^3 . x^2 . y^-3)
= (9 x^(4 - 2) . y^(-2 - (-3)) / (216)
= 1/24 . x^2 . y

2) 3/(√5 - √2) . (√5 + √2)/(√5 + √2)
= 3(√5 + √2)/(5 - 2)
= 3(√5 + √2)/3
= √5 + √2