Algebramedium · Past Paper
Find the value of p if the roots of 3x^2 - px + 3 = 0 are equal.
A6
B-6
C±6
D9
✓ Correct Answer: C — ±6
D = p^2 - 4(3)(3) = 0 => p^2 = 36 => p = ±6.
Share this question
More from Algebra
- If the length of a rectangle is reduced by 5 units and breadth is increased by 3 units, the area is reduced by 9 sq units. If we increase length by 3 and breadth by 2, area increases by 67. Find length.
- Factorize x^4 + 64.
- The roots of the equation x^2 - 2x + 1 = 0 are:
- Find 'k' for which the equation x^2 + 2(k+1)x + k^2 = 0 has equal roots.
- Factorize: 25 - 49y^2