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D( x )
x-2 = 0
x-2 = 0
x-2 = 0
x-2 = 0 // + 2
x = 2
x in (-oo:2) U (2:+oo)
(3*x^3+10*x^2+7*x-2)/(x-2) = 0
3*x^3+10*x^2+7*x-2 = 0
3*x^3+10*x^2+7*x-2 = 0
{ 1, -1, 2, -2 }
1
x = 1
3*x^3+10*x^2+7*x-2 = 18
1
-1
x = -1
3*x^3+10*x^2+7*x-2 = -2
-1
2
x = 2
3*x^3+10*x^2+7*x-2 = 76
2
-2
x = -2
3*x^3+10*x^2+7*x-2 = 0
-2
x+2
3*x^2+4*x-1
3*x^3+10*x^2+7*x-2
x+2
-3*x^3-6*x^2
4*x^2+7*x-2
-4*x^2-8*x
-x-2
x+2
0
3*x^2+4*x-1 = 0
DELTA = 4^2-(-1*3*4)
DELTA = 28
DELTA > 0
x = (28^(1/2)-4)/(2*3) or x = (-28^(1/2)-4)/(2*3)
x = (2*7^(1/2)-4)/6 or x = (-2*7^(1/2)-4)/6
x in { (-2*7^(1/2)-4)/6, (2*7^(1/2)-4)/6, -2}
(x-((-2*7^(1/2)-4)/6))*(x-((2*7^(1/2)-4)/6))*(x+2) = 0
((x-((-2*7^(1/2)-4)/6))*(x-((2*7^(1/2)-4)/6))*(x+2))/(x-2) = 0
( x+2 )
x+2 = 0 // - 2
x = -2
( x-((-2*7^(1/2)-4)/6) )
x-((-2*7^(1/2)-4)/6) = 0 // + (-2*7^(1/2)-4)/6
x = (-2*7^(1/2)-4)/6
( x-((2*7^(1/2)-4)/6) )
x-((2*7^(1/2)-4)/6) = 0 // + (2*7^(1/2)-4)/6
x = (2*7^(1/2)-4)/6
x in { -2, (-2*7^(1/2)-4)/6, (2*7^(1/2)-4)/6 }
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