cody_10
Nov 6, 2007, 04:48 PM
Can you hel pme solve this equation using the quadratic formula:
5X^2-2X+8=0
thank youuuuu!
terryg752
Nov 6, 2007, 08:18 PM
You can do it yourself by following the following:
Solutions of ax^2 + bx + c = 0
are [-b + (b^2 - 4ac)^1/2]/2a and [-b - (b^2 - 4ac)^1/2]/2a
I think your confusion may arise because both roots are complex numbers.
So remember that the square root of a negative number is imaginary, e.g.
(100)^-1/2 = I (100)^1/2 = 10 I
where I = square root of (-1)