Question

What is the product for
1. (3)(3)(-1)(3)
2. (-3)(3)(-3)(-3)

Answer 1

1-> 27 x -1 =-27
2->81 X -1=-81

Answer 2

-1 x -1 will be +ve 1
and -1 x 1 will be -1

Answer 3

similarly -3 x -3=9
and -3 x 3=-9