Posted by Jasmine on Friday, March 2, 2012 at 1:07pm.
y^-2 dy = 4 x dx
-1 y^-1 + c = 2 x^2 the important step
-1/y + c = 2 x^2
-1 + c y = 2 x^2 y
y (2 x^2 -c) = -1
y = -1/ (2 x^2 -c) you can write that several ways
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