Methods to find quadruple -18

Finding the quadruple of -18 involves understanding that quadrupling means taking four times the original number. If you start with the value -18, you multiply it by 4 to get a new number that is four times as large. In practice, you take the number -18 and multiply it by 4, which is written as (-18 * 4). This calculation yields -72, the quadruple of -18. This method works for any number and is a basic operation used frequently in mathematics to scale values by a factor of four.