Question

Calcule 8³ - (-5)² + 3¹ + 4² + 2¬¹ *

A)509,5
B)506,5
C)1209
D)1219

Answer 1

${8}^{3} - ( { - 5})^{2} + {3}^{1} + {4}^{2} + {2}^{ - 1} =$

$512 - 25 + 3 + 16 + 0.5$

$487 + 3 + 16 + 0.5$

$490 + 16 + 0.5$

$506 + 0.5$

$506.5$