Question

Use the quadratic formula to find solutions to the quadratic equation given below. 2x2+x-1=0

Answer 1

`\boxed{x = (1)/(2)} \text{and} \boxed{x = - 1}`

Explanation:

The quadratic formula is:
`$(-b \pm √(b^2 - 4ac))/(2a)$`.

So plugging in all the values, we are left with
`(-1 \pm 3)/(4).`

Then, we can solve for both values of x, which are
`x = 1/2` and
`x = -1`