Solution:
The expression shown in the image is "-√12". To solve this, we will simplify the square root of 12 first and then apply the negative sign.√12 can be broken down into √(4 * 3) = √4 * √3.Since we know that √4 is 2, we have √12 = 2√3.Applying the negative sign to this result, we get:-√12 = -2√3So, the simplified form of "-√12" is "-2√3".