The answer is easy to understand if we temporarily replace the phrase "square roots of 11"
with the word "bean".
Then the question becomes: "2 beans plus 3 beans", and we sense instinctively that the answer
must be something close to 5 beans.
In similar fashion . . .
2 sqrt(11) + 3 sqrt(11) = 5 sqrt (11).
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x=16
33
A^2 + b = 7 A + B^2 =11 -------------- A=2 and B=34(2^2) + 3 = 7 2 + 9(3^2) = 11
The complex numbers (1/2 + √11/2 i) and (1/2 - √11/2 i)
The square roots of 4 are -2 and 2.