What is the value of the expression given below

(8-3i) - (8-3i) (8+8i)

At first let's multiply the second terms of the given expression. So,

(8-3i) (8+8i) = 8*8 + 8*8i - 3i*8 - 3i*8i

= 64 + 64i - 24i - 24i^2 (By multiplying)

= 64 + 40i - 24 * (-1) (Adding the like terms and i^2=1)

=64 + 40i + 24 (Since (-24) * (-1) = + 24)

= 88+40i (Adding the like terms).

Now the original equation is:

(8-3i) - (8-3i) (8+8i) = (8-3i) - (88+40i)

=8 - 3i - 88 - 40i

= (8-88) - 3i - 40i (By grouping the like terms)

=-80 - 43i (Combine the like terms).

So, the value of the given expression is - 80 - 43i.