Algebraeasy · Past Paper
In the equation x^2 - kx + 4 = 0, if the sum of roots is 5, find k.
A4
B5
C-5
D2
✓ Correct Answer: B — 5
Sum of roots = -b/a = -(-k)/1 = k. Given sum is 5, so k = 5.
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✓ Correct Answer: B — 5
Sum of roots = -b/a = -(-k)/1 = k. Given sum is 5, so k = 5.
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