If p+q=12and Pq=22 find p2+q2
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•p+q=12.
•pq=22.
•Then p^2+q^2=?
•Using identity,
•(p+q)^2=p^2+q^2+2pq.
•(12)^2=p^2+q^2+2(22).
•144=p^2+q^2+44.
•p^2+q^2=144-44.
•p^2+q^2=100.
•Hence the required answer is 100.
•Hope it helps u!!!
•pq=22.
•Then p^2+q^2=?
•Using identity,
•(p+q)^2=p^2+q^2+2pq.
•(12)^2=p^2+q^2+2(22).
•144=p^2+q^2+44.
•p^2+q^2=144-44.
•p^2+q^2=100.
•Hence the required answer is 100.
•Hope it helps u!!!
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