Question

Please take a look at the picture. Please write your answer with an explanation.

Answer 1

3

Explanation:

Given question:

To simplify -

`14 + 16 / {2}^(3) - (12 + {3}^(2) ) / 7 + 2 * ( - 5)`

Solution:

According to PEMDAS rule,

• [First parenthesis]

`= 14 + 16 / {2}^(3) - (12 + 9 ) / 7 + 2 * ( - 5)`

`= 14 + 16 / {2}^(3) - 21 / 7 + 2 * ( - 5)`

• [Then exponents]

`= 14 + 16 / 8 - 21 / 7 + 2 * ( - 5)`

• [Then multiplication]

= 14 + 16 ÷ 8 - 21 ÷ 7 - 10

• [Then division]

= 14 + 2 - 3 - 10

• [Then addition]

= 16 - 13

• [Then subtraction]

= 3 (Ans)