2x^2 + x - 3 < 0
2x^2 + 3x 2
6(1 - x^2) 5x
1 - 4x < -4x^2
25x^2 -8(5x +2)
6x - 4 > x(1 - 3x)
2x²+x-3<0
2x²-2x+3x-3<0
2x(x-1)+3(x-1)<0
(2x+3)(x-1)<0
2x+3=0
2x=-3
x=-3/2 ∨ x=1
x∈(-3/2,1)
-----------------------
2x²+3x≥2
2x²+3x-2≥0
Δ=3²-4*2*(-2)
Δ=9+16
Δ=25
√Δ=5
x₁=(-3-5)/(2*2)x₁=-8/4
x₁=-2
x₂=(-3+5)/(2*2)
x₂=2/4
x₂=½
x∈(-∞,-2>u<½,∞)
--------------------------
6(1 - x²)≤5x
6-6x²≤5x
6x²+5x-6≥0
Δ=5²-4*6*(-6)
Δ=25+144
Δ=169
√Δ=13
x₁=(-5-13)/(2*6)
x₁=-18/12
x₁=-3/2
x₂=(-5+13)/(2*6)
x₂=8/12
x₂=2/3
x∈(-∞,-3/2>u<2/3,∞)
-------------------------------
1 - 4x < -4x²
4x²-4x+1<0
(2x-1)²<0 ⇒ brak rozwiązania
25x²≥-8(5x +2)
25x²≥-40x-16
25x²+40x+16≥0
(5x+4)²≥0
x∈R
----------------------------------
6x-4>x-3x²
3x²+5x-4>0
Δ=5²-4*3*(-4)
Δ=25+48
Δ=73
√Δ=√73
x₁=(-5-√73)/(2*3)
x₁=-⅙(5+√73)
x₂=(-5+√73)/(2*3)
x₂=-⅙(5-√73)
x∈(-∞,-⅙(5-√73))u(-⅙(5+√73),∞)
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2x²+x-3<0
2x²-2x+3x-3<0
2x(x-1)+3(x-1)<0
(2x+3)(x-1)<0
2x+3=0
2x=-3
x=-3/2 ∨ x=1
x∈(-3/2,1)
-----------------------
2x²+3x≥2
2x²+3x-2≥0
Δ=3²-4*2*(-2)
Δ=9+16
Δ=25
√Δ=5
x₁=(-3-5)/(2*2)
x₁=-8/4
x₁=-2
x₂=(-3+5)/(2*2)
x₂=2/4
x₂=½
x∈(-∞,-2>u<½,∞)
--------------------------
6(1 - x²)≤5x
6-6x²≤5x
6x²+5x-6≥0
Δ=5²-4*6*(-6)
Δ=25+144
Δ=169
√Δ=13
x₁=(-5-13)/(2*6)
x₁=-18/12
x₁=-3/2
x₂=(-5+13)/(2*6)
x₂=8/12
x₂=2/3
x∈(-∞,-3/2>u<2/3,∞)
-------------------------------
1 - 4x < -4x²
4x²-4x+1<0
(2x-1)²<0 ⇒ brak rozwiązania
-------------------------------
25x²≥-8(5x +2)
25x²≥-40x-16
25x²+40x+16≥0
(5x+4)²≥0
x∈R
----------------------------------
6x - 4 > x(1 - 3x)
6x-4>x-3x²
3x²+5x-4>0
Δ=5²-4*3*(-4)
Δ=25+48
Δ=73
√Δ=√73
x₁=(-5-√73)/(2*3)
x₁=-⅙(5+√73)
x₂=(-5+√73)/(2*3)
x₂=-⅙(5-√73)
x∈(-∞,-⅙(5-√73))u(-⅙(5+√73),∞)