Factorize 2x\(^2\) – 21x + 45
- (2x - 9)(x - 5)
- (2x-15)(x + 3)
- (2x +15)(x - 3)
-
(2x -15(x - 3)
- (2x - 9)(x + 5)
The correct answer is: D
Explanation
2x\(^2\) - 21x + 45
= 2x\(^2\) - 15x - 6x + 45
= x(2x - 15) - 3(2x - 15)
= (x - 3)(2x - 15)