P^3 + q^3 = 152, p + q = 8, pq = ?
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Answered by
4
Answer:
pq = 15; p = 3, q = 5.
Step-by-step explanation:
p + q = 8
(p + q)³ = 8³
(p³ + q³) + 3pq(p + q) = 512
(152) + 3pq(8) = 512
24pq = 512 - 152 = 360
pq =
pq = 15
Answered by
0
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