Can You Help Me To Find It ? c^2 + bc + 4 = 0
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Originally Posted by JessiesGirl Can You Help Me To Find It ? c^2 + bc + 4 = 0 I'm assuming that c is the variable? For a double root, the discriminant of the quadratic equation is equal to zero. If you have a number Ax^2+Bx+C = 0 , then the discriminant is $\displaystyle B^2-4AC $
I didn't Get It ...
Originally Posted by JessiesGirl I didn't Get It ... in order to have a double root set $\displaystyle b^2 - 4(4) = 0$ and solve for as Mush said, this comes from the discriminant in the quadratic formula.
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