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Question

Factorise:
p2 + 6p − 16

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Solution

The given expression is p2+ 6p -16.Find two numbers that follow the conditions given below:Sum =6 Product =-16Clearly, the numbers are 8 and -2. p2+ 6p -16= p2+8p-2p -16 =p(p+8) -2 (p+8) =(p+8) (p-2)

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