Factorize \( x^2 − 2x − 15 \)
- (x + 3)2
- (x + 5)(x − 3)
- (x − 5)2
-
(x − 5)(x + 3)
The correct answer is: D
Explanation
x2 − 2x − 15(x2 − 5x) + (3x − 15)
x(x − 5)+ 3(x − 5)
(x − 5)(x + 3)
There is an explanation video available .