Question

What is `(4^2-8)*2^3-8*5-:10`?

Answer 1

`[(16-8)xx8]-40/10= 64-4=60`

Explanation:

It's actually extremely simple if you know the order of operations.
PEMDAS!

• Parentheses
• Exponent
• Multiplication
• Division
• Addition
• Subtraction

It also goes left to right! So beginning with the parentheses, we focus on what is in the parentheses

`( 4^2 -8)`

meaning `16`, which is the square of `4`, subtracted by `8`. which turns in to `8`.

`( 4^2 -8) = 16 - 8 = 8`

After the paratheses, you multiply by `8` the cube of `2`, which is then subtracted by `4`.

`8 xx 2^3 = 8 xx 8 = 64`

Since, if you follow PEMDAS and multiply then divide from left to right, it's `40/10`, which is `4`. So the answer, in the end, is

`64 - 40/10 = 64 - 4 = 60`