Question

3) {2⁵ – [12 + (7 . 3 – 4) – 7]} : 5 + 3² . 2 + (8² – 5²) ‘
a) 30
b) 39
c) 32
d) 59

Answer 1

$= |{2}^{5} - (12 + (7 \times 3 - 4) - 7)| \div 5 + {3}^{2} \times 2 + ( {8}^{2} - {5}^{2} )$

$= | {2}^{5} - |12 + 17 - 7 | \div 5 + 9 + (64 + 25)$

$=|32 - 22|\div 5 + 9 \times 2 + (64 - 25)$

$= 10 \div 5 + 9 \times 2 + 89$

$= 2 + 18 + 89$

$= 109$