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1
p - q = 9
pq = 36
By p - q = 9, we find out,
p = 9 + q
Therefore,
(9 + q)q = 36
9q + q^2 = 36
q = 3
Therefore,
p = 9 + 3 = 12
(i) p + q
12 + 3 = 15
(ii) p^2 - q^2
12^2 - 3^2 = 144 - 9 = 135
Hope you found this helpful :)
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