Question

What is the value of the expression when n=3?

–2n(5 + n – 8 – 3n)

Answer 1

When n=3, the value of the expression is 54.

Step-by-step explanation:

To find the value of the expression when n=3, we substitute n=3 into the expression: –2n(5 + n – 8 – 3n).

First, we simplify the expression:

–2n(5 + n – 8 – 3n) = –2(3)(5 + 3 – 8 – 3(3))

= –2(3)(5 + 3 – 8 – 9)

= –2(3)(-9)

= –2(-27)

= 54.

Therefore, when n=3, the value of the expression is 54.

Answer 2

-2n(5 + n - 8 - 3n)
-10n - 2n² + 16n + 6n²
4n² + 6n