Question

How do i Solve: 3x2−6x−12=0 ?

Answer 1

1 + root 5, 1 - root 5

Explanation:

I assume you mean 3x^2-6x-12=0.

First, note that you can divide both sides by 3. You get:

x^2-2x-4=0

Use the quadratic equation.

`x=(2\pm√(4+16))/(2)=(2\pm2√(5))/(2)=1\pm√(5)`

Therefore, x=1 + root 5, 1 - root 5