9 square root 4 minus 12 square root 4 = -6
2 x 2 = 4 -2 x -2 = 4
JACK
2
the square root of 4 is 2 square root 2
The square root of -4 is: 2 i
x plus the square root of 2
9 square root 4 minus 12 square root 4 = -6
It is: (3*2)-(2*2) = 2
?
4 x square root of 10 minus square root of 10 = 3 x square root of 10.
(3 x 2) - (2 x 2) = 2
29.5
2 x 2 = 4 -2 x -2 = 4
JACK
2
It is imaginary; we denote sqrt of -1 = i square root (-4) = ± 2i