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mart [117]
2 years ago
14

With full explanation from the internet like before 3x2-6x+5=0

Mathematics
2 answers:
Elodia [21]2 years ago
6 0

Answer:

\sf x=1+i\sqrt{\dfrac{2}{3}}   \ \quad and  \quad \:x=1-i\sqrt{\dfrac{2}{3}}

Explanation:

<u>Given Expression</u>:

  • 3x² - 6x + 5 = 0

Use the Quadratic Formula:

\sf x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a}  \  \ when   \ \  ax^2 + bx + c = 0

<u>insert coefficients</u>

\Longrightarrow \sf x = \dfrac{-\left(-6\right)\pm \sqrt{\left(-6\right)^2-4\cdot \:3\cdot \:5}}{2\cdot \:3}

\Longrightarrow \sf x = \dfrac{\left6\right\pm \sqrt{-24} }{6}

\Longrightarrow \sf x = \dfrac{\left6\right\pm 2\sqrt{6}i}{6}

\Longrightarrow \sf x =1 \pm   i\dfrac{\sqrt{6} }{3}

\Longrightarrow \sf x=1+i\sqrt{\dfrac{2}{3}},  \quad 1-i\sqrt{\dfrac{2}{3}}

Fiesta28 [93]2 years ago
6 0
  • 3x²-6x+5=0

Use quadratic formula

\\ \rm\Rrightarrow x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

\\ \rm\Rrightarrow x=\dfrac{6\pm \sqrt{36-60}}{6}

\\ \rm\Rrightarrow x=\dfrac{6\pm\sqrt{-24}}{6}

\\ \rm\Rrightarrow x=\dfrac{6\pm2\sqrt{6}i}{6}

\\ \rm\Rrightarrow x=1\pm \dfrac{sqrt{2}i}{\sqrt{3}}

\\ \rm\Rrightarrow x=1\pm\sqrt{\dfrac{2}{3}}i

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