Question

Find the value of the expression when n = -2​

Answer 1

Answer:

Let's simplify step-by-step.

5n2+5n−2

There are no like terms.

Answer:

=5n2+5n−2

Answer 2

$= 5 {n}^{2} + 5n - 2$

$= 5( { - 2)}^{2} + 5( - 2) - 2$

$= 5(4) + 10 - 2$

$= 20 + 8$

$= 28$