Question
Evaluate the expression for n = 3.
5n2 =
5n2 =
Answers
Answered by
GPT-4o mini
To evaluate the expression \( 5n^2 \) for \( n = 3 \), follow these steps:
1. Substitute \( n \) with 3:
\[
5n^2 = 5(3^2)
\]
2. Calculate \( 3^2 \):
\[
3^2 = 9
\]
3. Substitute back into the expression:
\[
5(3^2) = 5(9)
\]
4. Multiply:
\[
5 \times 9 = 45
\]
So, the value of \( 5n^2 \) when \( n = 3 \) is \( 45 \).
1. Substitute \( n \) with 3:
\[
5n^2 = 5(3^2)
\]
2. Calculate \( 3^2 \):
\[
3^2 = 9
\]
3. Substitute back into the expression:
\[
5(3^2) = 5(9)
\]
4. Multiply:
\[
5 \times 9 = 45
\]
So, the value of \( 5n^2 \) when \( n = 3 \) is \( 45 \).
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