Factorize \( x^2 − 2x − 15 \)

  • A (x + 3)2
  • B (x + 5)(x − 3)
  • C (x − 5)2
  • D (x − 5)(x + 3)
jamb 2015mathematics

The correct answer is D. (x − 5)(x + 3)

x

2x

− 2x − 15

(x

2(x

− 5x) + (3x − 15)

x(x − 5)+ 3(x − 5)

(x − 5)(x + 3)

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