First of all, i would like to thank my first time visitor under the name Mom for her time and for correcting my previous post. As you can see the first pic i posted lacked of something which is the negative sign,so please take note of it. If you take a close look on the second picture adding the X1 + X2 equals -2B/2A, i thought you might begin wondering considering the first pic with no negative sign, it should just be 2B/2A if you will add it without the sign. You wouldnt even come up with x1 + x2 = -B/A....

Below is the corrected formula with the minus sign...



:D

oh :D did i said take note of the negative sign on my previous post,i should have clearly said take note of the negative sign on the B eh he he thanks ms. mom