Question

HELP!!!!!!!

Calculate the discriminant.

x2 – x – 2 = 0


9
7
–7
–9

Answer 1

ax^2 + bx + c = 0
discriminant = b^2 - 4ac

Answer 2

Can someone explain it to me step by step

Answer 3

I dont understand how to do that, reasons why I needed help lol

Answer 4

\[Discriminant=b^2-4ac=\left( -1 \right)^2-4*1*-2=1+8=?\]

Answer 5

A am I right?

Answer 6

@surjithayer

Answer 7

correct