Question

evaluate $8m^2 + m$ for $m = 5$.
when $m = 5$, $8m^2 + m = \square$.

Explanation:

Step1: Substitute m = 5 into the expression

Substitute \( m = 5 \) into \( 8m^2 + m \), we get \( 8\times5^2 + 5 \).

Step2: Calculate the exponent

First, calculate \( 5^2 = 25 \), so the expression becomes \( 8\times25 + 5 \).

Step3: Calculate the multiplication

Then, calculate \( 8\times25 = 200 \), so the expression becomes \( 200 + 5 \).

Step4: Calculate the addition

Finally, calculate \( 200 + 5 = 205 \).

Answer:

205