Question

Using the quadratic formula to solve 7x^2-x-7=0

Answer 1

`7x^(2) - x - 7 = 0`

`x = \frac{-(-1) \± \sqrt{(-1)^(2) - 4(7)(-7)}}{2(7)}`

`x = (1 \± √(1 + 196))/(14)`

`x = (1 \± √(197))/(14)`

`x = (1 + √(197))/(14)`
`or`
`x = (1 - √(197))/(14)`