Evaluate Using the Given Value 7m+3mn when m=8 and n=14

$7 m + 3 m n$ when $m = 8$ and $n = 14$

Step 1

Replace the variable $m$ with $8$ in the expression.

$7 (8) + 3 (8) \cdot n$

Step 2

Replace the variable $n$ with $14$ in the expression.

$7 (8) + 3 (8) \cdot (14)$

Step 3

Simplify each term.

Multiply $7$ by $8$ .

$56 + 3 (8) \cdot (14)$

Multiply $3 (8) (14)$ .

Multiply $3$ by $8$ .

$56 + 24 \cdot 14$

Multiply $24$ by $14$ .

$56 + 336$

Step 4

Add $56$ and $336$ .

$392$