factorize p²-9p-36........
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Answer:
p = -3 or 12
Step-by-step explanation:
p²- 9p -36 = 0
By splitting the middle term,
p²+ 3p -12p -36 = 0 [3p - 12p = -9p]
p (p+3) -12 (p+3) = 0 [taking common factors]
(p - 12) (p +3) = 0
(p - 12) = 0 ; else, (p + 3) = 0
∴ p = 12 ; p = -3
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