(125b²)³ (5³b²)³ 5⁹b⁶
------------- = -------------- = ------------- = 5⁷b²
25b⁴ 5²b⁴ 5²b⁴
( V 2 ) ^ x • ( V 7 ) ^ x = 196
V 14 ^ x = 196
14 ^ 1/2x = 14 ^ 2
1/2x = 2
X = 2 : ( 1/2 )
X = 4
√5*√18*√10=√(5*18*10)=√900=30
- 1 ⁶¹/₆₄ = - ¹²⁵/₆₄ = (- ⁵/₄)³
- 1 ⁶¹/₆₄ y³ = (- ⁵/₄ y)³ = (- 1 ¹/₄ y)³