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denpristay [2]
4 years ago
7

Solve 3x²-x-2=0. Please show all work.​

Mathematics
1 answer:
lorasvet [3.4K]4 years ago
3 0

3x²-x-2=0

Δ=1+24=25 (Δ=b²-4ac)

x₁,₂=\frac{1(+/-)\sqrt{25} }{6}

x₁,₂=\frac{1(+/-)5}{6}

x1=\frac{1+5}{6}=6/6=1

x2=\frac{1-5}{6}=\frac{-2}{3}

so

x1=1

x2=\frac{-2}{3}

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