SOLUTION: Find the value(s) of b that will cause the equation 4x^2 +bx +4 to have one {{{highlight(cross(equation))}}} solution.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Find the value(s) of b that will cause the equation 4x^2 +bx +4 to have one {{{highlight(cross(equation))}}} solution.       Log On


   

Question 1197812: Find the value(s) of b that will cause the equation 4x^2 +bx +4 to have one highlight%28cross%28equation%29%29 solution.
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.

(1)   See how I edited your post,  which originally came non-sensical.


(2)   Use the condition that the discriminant of the equation is zero.


ANSWER.   b = 8   or   b = -8.