Question

If a = -1 and b=2 find the values of
1. 5a2 - 2ab

2. ab - a2​

Answer 1

Answer:

the answer is

1) 9

2) -1

Answer 2

Answer:

1) 5*(-1)^2 - 2*(-1)*2

= 5-4(-1)

= 5+4

= 9

2). 2(-1) -(-1)^2

= -2-1

=-3