Question

What is the value of the expression when n=3

-2n(5+n-8-3n)

Answer 1

-42

Explanation:

-2n(5+n-8-3n)

Combine like terms

-2n (13 -2n)

Let n =3

-2*3 (13 -2(3))

-6 (13 -6)

-6 (7)

-42