1 + 1 = 2,
2 - 3 = -1,
3 + 7 = 10
2 ^ 4 = 16,
log2(16) = 4,
5 ^ 3 = 125
11 ^ 2 = 121
12 ^ 2 = 144
13 ^ 2 = 169...
25 ^ 2 = 625
15 ^ 2 = 225
f(x) = x ^ 2 + 2x + 3
x = 2,
f(2) = 4 + 4 + 3 = 11
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