9 square root 4 minus 12 square root 4 = -6
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2 square root 2
4 times 4 minus 4 minus square root of 4.
To simplify the square root of 12: Look at numbers that can be reduced from the larger number and can be square rooted itself. 4 * 3 = 12 The square root of 4 is 2. Therefore the simplification of the square root of 12 is: 2*square root of 3
The answer is 2i. When dealing with negative square roots, the expression i is used to represent the square root of -1.