If p + q = 9 and pq = 24, then find p2 + q2.
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Answered by
2
p2 + q2
=p2 + q2 +2pq -2pq
= (p+q)2 - 2pq
= (9)2 - 2×24
=81 - 48
=33
=p2 + q2 +2pq -2pq
= (p+q)2 - 2pq
= (9)2 - 2×24
=81 - 48
=33
Answered by
1
(p+q)^2 = p2 + q2 + 2pq
81 - 48 = p2 + q2
= 33 ans .
81 - 48 = p2 + q2
= 33 ans .
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