Answer:
6 Celsius
Step-by-step explanation:
Initial temperature at 12pm is 0 Celsius.
Rises by 6 (add by 6).
a² - b² = (a + b)(a - b)
a= p ; b = 2p + 1
p² - (2p + 1)² = (p + 2p +1) (p - [2p+1] )
= (3p + 1) (p - 2p -1)
= (3p + 1)(-p - 1)
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