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Let 3x^2+kx+4. determine all values of k such that the quadratic equation f(x) =0 has one real root

Let 3x^2+kx+4. determine all values of k such that the quadratic equation f(x) =0 has one real root
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Let 3x^2+kx+4. determine all values of k such that the quadratic equation f(x) =0 has one real root

User Kastriotcunaku
by
8.4k points

1 Answer

4 votes
//I'll use the discriminant rule for this.
b^2 - 4ac = 0 when one real root

Therefore, k^2 - 4*3*4= 0
k^2 = 48
k= +-4√3
User Muhammad Adil
by
8.5k points
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