posted by Megan on .
For what value(s) of b will x^2 + bx + 3 have exactly one root?
I'm rather new at this but wouldn't b=2*sqrt(3) give (x+sqrt3)2 as factors and that would give one root?
Check my thinking.
for a quadratic equation to have exactly one root, the discriminat must be zero i.e
if equation is:
ax^2+bx+c=0 , then for exactly one root,
for your equation,