Question

$86.7 + 4.22 \times (9.6 - 0.03)^{2}$

Answer 1

$86.7 + 4.22 \times (9.6 - 0.03)^{2}$
Lets follow PEMDAS. First, parenthesis, lets subtract 0.03 from 9.6.
$86.7 + 4.22 \times 9.57^{2}$
Next, lets deal with the exponent.
$86.7 + 4.22 \times 91.5849$
Multiplication next, so 4.22 * 91.5849.
$86.7 + 386.488278$
Last, we add.
$473.188278$