2 - 3Х < 3 - 5X - 10
2 - 3X < - 5X - 7
- 3X + 5X < - 7 - 2
2X < - 9
X < ( - 4.5 )
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( - бесконечность ; - 4.5 )
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3X^2 - 8X - 3 ≥ 0
D = 64 - 4*3*(-3) = 64 - 36 = 28
V D = V 28 = 2 V 7
X1 = ( 8 + 2 V 7 ) : 6 = 4/3 + 1/3 V 7
X2 = 4/3 - 1/3 V 7