Algebramedium · Past Paper
Find the value of p if x = -1 is a zero of P(x) = px^2 - 2x + 3.
A-5
B5
C-1
D1
✓ Correct Answer: A — -5
P(-1) = p(-1)^2 - 2(-1) + 3 = p + 2 + 3 = 0. So p = -5.
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