Factorize ( x^2 − 2x − 15 )
-
A.
(x + 3)2 -
B.
(x + 5)(x − 3) -
C.
(x − 5)2 -
D.
(x − 5)(x + 3)
Correct Answer: Option D
Explanation
x2 − 2x − 15
(x2 − 5x) + (3x − 15)
x(x − 5)+ 3(x − 5)
(x − 5)(x + 3)
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