Question

How do you simplify `4(10-3^2*2+5)` using PEMDAS?

Answer 1

The given expression simplifies to `-12`.

See the explanation.

Explanation:

PEMDAS is acronym for remembering the order of operations.

P: Parentheses or brackets
E: Exponents
M and D: Multiplication and division from left to right.
A and S: Addition and subtraction from left to right.

Simplify:

`4(10-3^(2)*2+5)` `larr` parentheses and exponent first.

`4(10-9*2+5)` `larr` multiply `9*2`.

`4(10-18+5)` `larr` add and subtract from left to right.

`4(-3)` `larr` multiply `4` and `-3`

`-12` `larr` answer