Question 1183657
2 * (a + b) < (a + b) ^ 2

* means times (multiplication symbol).
^ means raised to the power of 2 (exponentiation symbol).
(a + b) ^ 2 is the same as (a + b) squared is the same as the square of (a + b).
(a + b) is the same as the sum of (a and b) is the same as the sum of {a,b}.