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

for what are value of k are the roots of 3x^2-6x+k=0 equal?

- algebra2/trig -
**MathMate**, Saturday, February 26, 2011 at 1:04pm
For 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 7:41pm
k=6

## Answer this Question

## Related Questions

- alg2/trig - If 4x^2+9=kx, what value of k will produce equal roots? the answer ...
- algebra - Determine the value(s) of k for which x^2+(k-2)x-2k=0 has equal and ...
- Algebra - The equation x^2+px+q=0, q cannot be equal to 0, has two unequal roots...
- Pre-Calc/Trig... - Helpp needed, this is sort of confusing me. Describe the ...
- Math - Determine for what value(s) of d the quadratic equation 5x^2-10x+d = 0 ...
- calc - by applying rolle's theorem, check whether it is possible that the ...
- maths - If the roots of the eqn 1/(x+p) + 1/(x+p) = 1/r are equal in magnitude ...
- Triginometry - For which equasion does the sum of the roots equal 3/4 and the ...
- Adv algebra - The equation x^2+px+q=0, q cannot be equal to 0, has two unequal ...
- trig - use the discriminant to solve for the smallest value of b that would make...

More Related Questions