simplify : sqrt (12) - sqrt (27)

a) - sqrt(15)
b) -15 sqrt (3)
c)- sqrt (3)
d) -5 sqrt (3)

√12 -√27

= 2√3 - 3√3
= ???

12-5

To simplify the expression: √12 - √27, we need to use the properties of square roots.

Step 1: Simplify the square roots individually.
√12 = 2√3
√27 = 3√3

Step 2: Substitute the simplified values back into the expression.
2√3 - 3√3

Step 3: Combine like terms.
(2 - 3)√3
-√3

Therefore, the simplified expression is -√3.

So, the correct answer is c) -√3.