Question

find the discriminant:
x2 - 5x = 4

A)
3
B)
9
C)
18
D)
41

Answer 1

If we first put the equation into the form, \(ax^2 + bx + c = 0\), we can find the discriminant by using the formula and the coefficients: \(\text{discriminant} = b^2 - 4ac \).
So first, can you put the equation in that form?

Answer 2

You recently sent me the message to subtract 4 from both sides. And I agree!
x^2 - 5x - 4 = 0.
Now we use the coefficients to compute this value: b^2 - 4ac. This is called the discriminant.