Question

1. if a = 2, b = -2 then the value of a2 + ab-b2 is
a) 3
b) 4
c) 5 d) O​

Answer 1

Step-by-step explanation:

given : a=2 , b=-2

to find : a2 + ab-b2

= (2)^2 + (2*-2) - (-2)^2

= 4 - 4 - 4

= -4

Answer 2

the answer for a2+ab-b2 is 4