(7-2y)/((3y^2)-3y)

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Solution for (7-2y)/((3y^2)-3y) equation: 


D( y )

3*y^2-(3*y) = 0

3*y^2-(3*y) = 0

3*y^2-(3*y) = 0

3*y^2-3*y = 0

3*y^2-3*y = 0

DELTA = (-3)^2-(0*3*4)

DELTA = 9

DELTA > 0

y = (9^(1/2)+3)/(2*3) or y = (3-9^(1/2))/(2*3)

y = 1 or y = 0

y in (-oo:0) U (0:1) U (1:+oo)

(7-(2*y))/(3*y^2-(3*y)) = 0

(7-2*y)/(3*y^2-3*y) = 0

3*y^2-3*y = 0

3*y*(y-1) = 0

y-1 = 0 // + 1

y = 1

3*y*(y-1) = 0

(7-2*y)/(3*y*(y-1)) = 0

7-2*y = 0 // - 7

-2*y = -7 // : -2

y = -7/(-2)

y = 7/2

y = 7/2

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