Question

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

6 (n² + 2)
n
16
22
30
66

Answer 1

Explanation:

`\displaystyle \Large \boldsymbol{} 6(n^2+2) = 6(3^2+2)=66`

Answer 2

Answer: Fourth Choice. 66

Concept:

Here, we need to understand the idea of evaluation.

When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.

Solve:

Given information

n = 3

Given expression

6 (n² + 2)

Substitute values into the expression

=6 (3² + 2)

Simplify exponents

=6 (9 + 2)

Simplify values in the parentheses

=6 (11)

Simplify by multiplication

=
`\boxed{66}`

Hope this helps!! :)

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