0

If a = 3 and b = -1, what is the value of ab - b^{2} ?

1) -2

2) 2

3) -4

4) 4

**Comments**

0

ab - b^{2}

when a = 3 and b = -1,

(3)(-1) - (-1)^{2}

= -3 - 1

= -4

**Ans 3**

Your Answer