college
posted by saad .
(a+b)x2+(a+2b+c)x+b+c=0

This looks like a quadratic to me, use the quadratic equation. Looks like some messy algebra involved.
posted by saad .
(a+b)x2+(a+2b+c)x+b+c=0
This looks like a quadratic to me, use the quadratic equation. Looks like some messy algebra involved.