#### Answer

$7 \times \sqrt 64 - 14 \times 2 = 28$

#### Work Step by Step

1. Simplify the radical
$\sqrt 64 = 8$
Equation:$ 7 \times 8 - 14 \times 2$
2. Multiply the values
a) $7 \times 8 = 56$
b) $14 \times 2 = 28$
Equation: $56 - 28$
3. Subtract the values in the equation
$56 - 28 = x$
$28 = x$