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serious [3.7K]
3 years ago
7

I want to factorise this term by splitting the middle term.

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
5 0
X² - x - 20 
x² -5x+4x - 20 
x(x-5) +4(x-5) 
(x+4) (x-5)  
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