Find the sum of \sqrt{4}√ 4 and 3\sqrt{9}3√ 9 in simplest form. also, determine whether the result is rational or irrational and explain your answer.
Accepted Solution
A:
√4 + 3√9 = 2+3*3 = 11.
This is a rational number, since the answer can be express as a fraction (e.g., 11/1).
This does not hold for square roots in general. For example √3 is irrational.