Which expression is equivalent to (12 + 5) – (14 ÷ 7)² ?
(12 + 5) – (14 ÷ 7)² equals (12 + 5) – (2)².
Expanding further, (12 + 5) – (2)² equals 17 – 2².
Continuing, 17 – 2² equals 17 – 4.
Finally, 17 – 4 equals 13.
Therefore, the expression is equivalent to 13.