Question

Which of the following are solutions to the equation below?

x^2-2x-24-0

Answer 1

x=-4

x=6

Explanation:

Lets put to work the well known quadratic equation:

`x=\frac{-b+/- \sqrt{b^(2)-4ac } }{2a}`

Let us also, remember the given equation: x^2-2x-24=0

Where 'a' would be equals to 1, 'b' equals to -2 and c equals to -24.

The quadratic equations with those values is:

`(2 +/- √(4+96) )/(2)`

Where we obtain two values.

x1= -4

and x2= 6