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D( x )
3*x-2 < 0
3*x-2 < 0
3*x-2 < 0
3*x-2 < 0 // + 2
3*x < 2 // : 3
x < 2/3
x in <2/3:+oo)
(3*x-2)^(1/2) = 7 // - 7
(3*x-2)^(1/2)-7 = 0
(3*x-2)^(1/2) = -7 // + 7
(3*x-2)^(1/2) = 7 // ^ 2
abs(3*x-2) = 7^2 // - 7^2
abs(3*x-2)-7^2 = 0
x in (-oo:+oo)
abs(3*x-2)
3*x-2 >= 0
3*x-2 >= 0 // + 2
3*x >= 2 // : 3
x >= 2/3
x in <2/3:+oo)
3*x-7^2-2 = 0
x in (-oo:2/3)
2-(3*x)-7^2 = 0
abs(3*x-2)-7^2 = 0
/ | 2-(3*x)-7^2 = 0 i x in (-oo:2/3) | 3*x-7^2-2 = 0 i x in <2/3:+oo)
x in (-oo:2/3)
2-(3*x)-7^2 = 0
-3*x-47 = 0 // + 47
-3*x = 47 // : -3
x = 47/(-3)
x = -47/3
x in <2/3:+oo)
3*x-7^2-2 = 0
3*x-51 = 0 // + 51
3*x = 51 // : 3
x = 51/3
x = 17
x in { -47/3}
x = 17
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