Find the values of p for which the quadratic equation 4x2 + px + 3 = 0 has equal roots.
Deepak BoraNewbie
Quadratic equations : Find the values of p for which the quadratic equation 4x^2 + px + 3 = 0 has equal roots.
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4x2 + px + 3 = 0
Equation has equal roots,
∴ D = 0,
b²-4ac = 0
after comparison ax²+bx+c=0
a= 4, b= p & c= 3
∴ p²-4(4)(3) = 0
p² = 48
p = √48
p = ±4√3