Question

Solve for x. 3x^2-6x-2=0

Answer 1

Answer:

$x=\frac{3\pm\sqrt{15}}{3}$

Step-by-step explanation:

$3x^2-6x-2=0$

Using the quadratic formula to solve:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x=\frac{-(-6)\pm\sqrt{(-6)^2-4(3)(-2)}}{2(3)}$

$x=\frac{6\pm\sqrt{36+24}}{6}$

$x=\frac{6\pm\sqrt{60}}{6}$

$x=\frac{6\pm2\sqrt{15}}{6}$

$x=\frac{3\pm\sqrt{15}}{3}$

$x\approx{-0.291}, x\approx{2.291}$

Answer 2

Answer:

x=-4.5 or x=-2/9(fraction)

Step-by-step explanation:

3x^2-6x-2=0 simplify so add 3 minus 6 then do ^2

-9x-2=0 Add 2 on both sides

-9x=2 divide by -9 on both sides

x=-4.5 or x=-2/9