EM-484

Quadratic formula

E Math · Secondary 3 · Hard · Quadratic formula

Solve the equation

3x^2 - 5x - 2 = 0

using the quadratic formula.

$x=2$ or $x=-\dfrac{1}{3}$
$x=-2$ or $x=\dfrac{1}{3}$
$x=\dfrac{5\pm\sqrt{49}}{3}$
$x=\dfrac{-5\pm\sqrt{49}}{6}$

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