(3�ã2 + 4)^2

Question

(3�ã2 + 4)(3�ã2 + 4)
9�ã4 + 12�ã2 + 12�ã2 + 16
9*2�ã2 + 12�ã2 + 12�ã2 + 16
18�ã2 + 12�ã2 + 12�ã2 + 16 =
42�ã2 + 16

Answer 1

that �ã sign suppose to be a square root sign but its not coming out right

Answer 2

So you have (3√2 + 4)^2 ?

then ...
= (3√2 + 4)(3√2 + 4)
= 18 + 24√2 + 16
= 34 + 24√2

Answer 3

Thank you