Question

what is the discriminant of x2 - 14x + 49 = 0

Answer 1

I am not sure if it is 392 or 0. do I add or subtract??

Answer 2

14^-4(49)=0... you subtract

Answer 3

really? ok, well thank you. so there is really only one solution, correct?

Answer 4

yea.

Answer 5

thanks so much, that what i thought. :)

Answer 6

np

Answer 7

disc= b^2 - 4ac
here
a= 1 , b= -14 and c= 49
so
disc = (-14)^2 - 4(1)(49)
disc= 196- 196
disc = 0