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March 3, 2015

March 3, 2015

Posted by **jackie** on Saturday, February 26, 2011 at 11:19am.

- algebra2/trig -
**MathMate**, Saturday, February 26, 2011 at 1:04pmFor the roots of the quadratic equation

ax^2+bx+c=0

to be equal, the discriminant Δ must equal to zero, where

Δ=b^2-4ac...(1)

For the given equation

3x^2-6x+k=0

a=3,b=-6, c=k

Substitute a,b,and c in (1), equate to zero and solve for k.

Post your answer for checking if you wish.

- algebra2/trig -
**Bidyut**, Monday, January 2, 2012 at 7:41pmk=6

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