tolong ini semua yaa

1) ( xy³ ) -¹
---------------
( x-¹ y²)³

= x-¹ y -³
-------------
x-³ y^6

= x³
-----------
x¹ y³ y^6

= x²
-------
y^9

2) 256^½ × 27^⅓
= (2^8)^½ × ( 3³)^⅓
= 2⁴ × 3¹
= 16 × 3
= 48

3) 125 = (5)³
pangkat negatif = 5-³

4) ( ⁴√2) ^6
= ( 2^¼) ^6
= 2^6/4
= 2 ^3/2

5) √32 - 5√8 + 3√2
= 4√2 - 10√2 + 3√2
= - 3√2

6) ( 5 + √8 )( 5 - √8)
= 25 - 5√8 + 5√8 - 8
= 17

7) ( 2-³)-²
= 2^6

8) √98 = 7√2

9) 6
--------
√5 - 2

= 6 × ( √5 + 2)
---------------------------
( √5 - 2) × ( √5 + 2)

= 6 ( √5 + 2 )
----------------------
5 - 2√5 + 2√5 - 4

= 6 ( √5 + 2)
--------------------
1

= 6 ( √5 + 2)

10) 2√75 + √48
= 10√3 + 4√3
= 14√3