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4x²+4x>3
4x²+4x-3>0
4x²+4x-3=0
Δ=4²-4*4*(-3)= 16+48=64
√Δ=8
x₁=-4-8 / 8= -12/8 = -1,5
x₂= -4+8 / 8= 4/8= 0,5
x∈(-∞,-1,5) ∨ (0,5; ∞)
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4x²+4x>3
4x²+4x-3>0
4x²+4x-3=0
Δ=4²-4*4*(-3)= 16+48=64
√Δ=8
x₁=-4-8 / 8= -12/8 = -1,5
x₂= -4+8 / 8= 4/8= 0,5
x∈(-∞,-1,5) ∨ (0,5; ∞)