SOLUTION: 3sqrt7/-1-sqrt27

Question 33044: 3sqrt7/-1-sqrt27
Answer by sarah_adam(201) (Show Source): You can put this solution on YOUR website!
/
now rationalise the numerator by multipling wit sqrt 7 on both numerator and denominator
* /
- 3*7/
-21/
-21/
now rationalise the denominator by multipling with to both numertor and denominator
-21 * ()/
-21 * ()/169 - 7
-21 * ()/162
-7* ()/54

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