Find the next two numbers in the pattern 7,-28,112,-448

If you would like to find the next two numbers in the pattern 7, - 28, 112, - 448, you can do this using the following steps:

7, - 28, 112, - 448, x, y

7 * (-4) = - 28

-28 * (-4) = 112

112 * (-4) = - 448

x = - 448 * (-4) = 1792

y = 1792 * (-4) = - 7168

The correct result would be 1792 and - 7168.