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at 1:42 where you cancelled out the square root and the raised to the second power, shoudn't you have taken the absolute value of what was under the square root, leaving you with y instead of -y?
(Sqrt-y)^2, here the power of 2 will cancel the sqrt leaving only -y
y=-i*sqrt(8). To solve you have to take sqrt(y) as c+id, where c and d are real values and i=sqrt(-1)
You are on the right path, that's right
@@wisfrank-zc6yp More simple. If we take a square of both parts we get 2iy = 16.
at 1:42 where you cancelled out the square root and the raised to the second power, shoudn't you have taken the absolute value of what was under the square root, leaving you with y instead of -y?
(Sqrt-y)^2, here the power of 2 will cancel the sqrt leaving only -y
y=-i*sqrt(8). To solve you have to take sqrt(y) as c+id, where c and d are real values and i=sqrt(-1)
You are on the right path, that's right
@@wisfrank-zc6yp More simple. If we take a square of both parts we get 2iy = 16.