If p+q=7 and pq=10, find the value of p^2+q^2.
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Step-by-step explanation:
16
p + q = 4 and p 2 + q 2 = 7(p + q) 2 = (4) 2 = 16 ⇒ p 2 + q 2 + 2pq = 16⇒ 7 + 2pq = 16
p + q = 4 and p 2 + q 2 = 7(p + q) 2 = (4) 2 = 16 ⇒ p 2 + q 2 + 2pq = 16⇒ 7 + 2pq = 16 ⇒ 2pq = 9
p + q = 4 and p 2 + q 2 = 7(p + q) 2 = (4) 2 = 16 ⇒ p 2 + q 2 + 2pq = 16⇒ 7 + 2pq = 16 ⇒ 2pq = 9 pq =
p + q = 4 and p 2 + q 2 = 7(p + q) 2 = (4) 2 = 16 ⇒ p 2 + q 2 + 2pq = 16⇒ 7 + 2pq = 16 ⇒ 2pq = 9 pq = 2
p + q = 4 and p 2 + q 2 = 7(p + q) 2 = (4) 2 = 16 ⇒ p 2 + q 2 + 2pq = 16⇒ 7 + 2pq = 16 ⇒ 2pq = 9 pq = 29
p + q = 4 and p 2 + q 2 = 7(p + q) 2 = (4) 2 = 16 ⇒ p 2 + q 2 + 2pq = 16⇒ 7 + 2pq = 16 ⇒ 2pq = 9 pq = 29
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