Question

15 − 4 + (7 − 5)2

Answer 1

\[ 15 − 4 + (7 − 5)^{2}\]

Answer 2

PEMDAS again

Answer 3

http://www.mathsisfun.com/operation-order-pemdas.html

Answer 4

15−4+(7−5)^2

Step 1 - Parentheses
15−4+2^2

Step 2 - Exponent

15 - 4 + 4

Step 3 - Addition/Subtraction (L to R)

11 + 4

15

Answer 5

Stop solving people's problems for them. It does not help.

Answer 6

PEMDAS
1. Parentheses
2. Exponent
3. Multiplication
4. Division
5. Addition
6. Subtraction

Answer 7

15