Question

(1+2)^2 is equal to? .? = ​

Answer 1

Answer:

(1+2)^2

= 3^2

= 9

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Answer 2

$\huge \colorbox{cyan}{answer}$

$\sqrt{ {1 + 2}^{2} } \\ \\ = \sqrt{ {3}^{2} } \\ \\ = 3$

1. ➡️Add the numbers
2. ➡️Reduce the index of the radical and exponent with 2