Question

Evaluate.
- 1(5)(3)(-1)

Answer 1

15

Explanation:

-1 x (5) = -5 x 3 = -15, -15 x -1 = 15

Answer 2

15

Explanation:

- 1(5)(3)(-1)

-1X5X3X-1

15

All the brackets will be converted to multiplication.

(-1X5)X(3X-1)

-5X-3

15

Note that minus multiply minus is plus