Question

Question 1 options:

x2 +x − 4 = 0
You will solve this using the Quadratic Formula.

First, what are the values of a, b, and c?

Answer 1

`(-1+/-3√(2) )/(2)` where a = 1, b = 1,and c=-4

Explanation:

To solve, use the quadratic formula. Using the quadratic formula, requires the standard form
`ax^2+bx+c` Here a = 1, b = 1, and c = -4.

The quadratic formula is
`x=(-b+/-√(b^2-4ac) )/(2a)`.

Substitute and you'll have:

`x=(-b+/-√(b^2-4ac) )/(2a) =(-1+/-√(1^2-4(1)(-4)) )/(2(1))=(-1+/-√(1+17) )/(2))`

`(-1+/-√(18) )/(2)=(-1+/-3√(2) )/(2)`