Question

(3+underroot 3)square​

Answer 1

Step-by-step explanation:

(3+√3)²

(3+1.73)²

(3.73)²

13.91

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Answer 2

Answer:

12+6√3

Step-by-step explanation:

if your question is (3+√3)^2 then

using formula (a+b)^2=a^2+b^2+2ab

3^2+√3^2+2×3×√3

9+3+6√3

12+6√3