Algebramedium · Past Paper
Factorize: x^2 - 2x - 15
A(x-5)(x+3)
B(x+5)(x-3)
C(x-15)(x+1)
D(x-3)(x-5)
✓ Correct Answer: A — (x-5)(x+3)
-5 and +3 add to -2 and multiply to -15.
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