Calculating quadruple -1

To calculate the quadruple of -1, you start by recognizing that quadrupling means multiplying by 4. The placeholder -1 represents any numeric value you choose. By multiplying -1 by 4, you effectively increase its value four times. For instance, if -1 represents 3, then multiplying 3 by 4 gives 12; this result, 12, is the quadruple of 3. Therefore, the formula (-1 * 4) generalizes this process for any input, allowing you to find -4 by performing this simple multiplication step.