trig
posted by
bob
.
what is the value of the discriminant x^29

trig 
Damon
b^2 = 0
4ac = 4(1)(9) = 36
b^24ac = 36
note
sqrt (36) is 6

trig 
Kay
Small correction Damon:
the formula is
(b + sqrt(b^2  4ac)) / 2a

Ans : + sqrt(36) / 2

ie + 6/2 and 6/3
Ans : + 3 and 3
Easier way: Method II
X^2 9 = 0
X^2 = 9
X = Sqrt(9)
X = 3 or 3
Done!