Question

evaluate the expression when m = 4 and n = 2. 3n + 2(2n + m) + m² = ?

Explanation:

Step1: Substitute m=4, n=2

$3(2) + 2(2(2) + 4) + 4^2$

Step2: Simplify inner parentheses

$3(2) + 2(4 + 4) + 16$

Step3: Simplify parentheses term

$3(2) + 2(8) + 16$

Step4: Perform multiplication

$6 + 16 + 16$

Step5: Sum all terms

$6 + 16 + 16 = 38$

Answer:

38