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The quadratic formula and the discriminant. solve for x. 3x^2-6x+2=0

1 Answer

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Answer:

x = 6 + 2√3 and x = 6 - 2√3

Explanation:

3x^2-6x+2=0 is a quadratic equation, for which a = 3, b = -6 and c = 2.

The discriminant is b² - 4ac, which here is (-6)² - 4(3)(2) = 36 - 24 = 12.

Because the discriminant is positive, this quadratic has two different, real roots.

They are:

-(-6) ± √12 6 ± 2√3

x = ------------------ = --------------- or

2(3) 6

x = 6 + 2√3 and x = 6 - 2√3

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