Question

3 times 7 plus 4 to the second power minus 14 divided by 2

Answer 1

It's 29 not thirty some thing was done wrong to get 30

Answer 2

3 times 7 plus 4 to the second power minus 14 divided by 2
=> 3 x 7 + 4^2 - 14 / 2
Let's group this one.
=> (3 x 7) + 4^2 - (14 / 2)
=> 21 + 16 - 7
=> 30
The answer is 30.