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Δ=b²-4ac
Δ=(-2√3)²-4*1*1
Δ=4*3-4=8
√Δ=√8=2√2
x₁=-b-√Δ/2a
x₁=2√3-2√2/2a
x₁=√3-2√2
x₂=-b+Δ/2a
x₂=2√3+2√2/2
x₂=√3+2√2