Multiply the numbers
${\left( 20-16 \right)}^{2}-3 \times 5+{2}^{0}$
Multiply the numbers
${\left( 20-16 \right)}^{2}-15+{2}^{0}$
Any non-zero expression raised to the power of
$0$ equals
$1$
${\left( 20-16 \right)}^{2}-15+1$
Subtract the numbers
${4}^{2}-15+1$
Evaluate the power
$16-15+1$
Calculate the sum or difference
$2$