Question 495739
A = 2
B = -3
C = -2

the formula is =(-b +,- {{{sqrt(b^2 - 4ac))}}}/ 2a)
(-3)^2 -( 4(2)(-2) )  = 9 + 16 =25
{{{(25)}}} =  5
3 + 5 = 8/4= 2
3 - 5 = -2/4 = -1/2
======================================================
To check:
2(2)^2 - 3(2) -2 = 0
2(-1/2)^2 - 3(-1/2) -2= 0 
These do check.
Cleomenius.