Algebramedium · Past Paper

If the sum of the roots of 3x^2 + (2k+1)x - (k+5) = 0 is equal to the product of roots, then k is:

A1
B2
C3
D4

✓ Correct Answer: D4

Sum = -(2k+1)/3, Product = -(k+5)/3. -(2k+1) = -(k+5) → 2k+1 = k+5 → k = 4.

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