# If the roots of the equation 3x^2-5x+q=0 are equal, find q.?

Answer given: q=25/12

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- ComoLv 73 years agoFavorite Answer
x = [- b ± √ (b² - 4ac) ] / 2a

For equal roots b² = 4ac

25 = 12 q

q = 25/12

- AdityaLv 43 years ago
If roots of quadratic equation ax^2 + bx + c = 0 are equal then discriminant b^2 -4ac = 0 OR b^2= 4ac

so according to question a = 3 , b = -5 , c = q

so b^2 = 4ac

(-5)^2 = 4(3)(q)

q = 25/12

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