Question

X^2-2x−4=0 please leave ans in surd form and simplify​

Answer 1

Hi there!

How are you?

Answer:

`\boxedOr`

Explanation:

First you have to use quadratic formula with
`a=1, b=-2, c=-4.`

`x = (-b \± √(b^2 -4ac) )/(2a)`

`x = (-(-2) \± √((-2)^2 - 4(1)(-4)) )/(2(1))`

`x = \frac{\sqrt{^2\± √(20) } }{2}`

`x = + √(5)` or
`x = 1 - √(5)`

Hvae a good day/night!

Answer 2

Explanation:

using the quadratic formula......