Question

find the product -ab ( a²-b²) find the value if a = 2 and b = -1/2​

Answer 1

9/4

Step-by-step explanation:

if a=2&b=-1/2

then

-ab=2-(-1/2)

=1

a²-b²=(a+b)(a-b)

= (2-1/2) (2-1/2)

= 3/2*3/2

= 9/4