Question

Please help!!!


Calculate the discriminant.



x2 + 2x – 2 = 0



A. –8


B. 12 <-------


C. –4


D. 8

Answer 1

x2 + 2x – 2 = 0
u can factorise it or us eht e quadratic formula

Answer 2

thank you!

Answer 3

So the discriminant will be found by solving

\[\large b^2 - 4ac\]

a,b and c being the coefficients of your quadratic

So we have

\[\large 2^2 - 4(1)(-2)\]
\[\large 4 - (-8)\]
\[\large 4 + 8 = 12\]

so yes correct :)

Answer 4

thank you

Answer 5

No problem you did all the work :)