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Factorize:  p^2 – 4p – 77

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Factorize: 

p2 – 4p – 77

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Best answer

p2 – 4p – 77 

Now, first we have to find out the numbers whose

Sum = - 4 and 

Product = - 77 

The numbers are 11 and 7, 

So, 

p2 – 4p – 77 

= p2 – 11p + 7p – 77 

= p(p – 11) + 7(p – 11) 

= (p – 11)(p + 7)

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