its d, I just solved it...
Answer:
(x - 5) (x + 1)
Explanation:
Given
x² - 4x - 5
= x² - ( 5 - 1)x - 5
= x² - 5x + x - 5
= x( x - 5) + 1 ( x - 5)
= ( x - 5) ( x + 1)
Hope it will help you :)
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