Algebrahard · Past Paper
If roots of x^2 - px + q = 0 are consecutive integers, then p^2 - 4q is:
A1
B2
C0
D4
✓ Correct Answer: A — 1
Let roots be n, n+1. Difference is 1. (α-β)^2 = 1 => p^2 - 4q = 1.
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