Question

If p+q=13 and pq=22,then p²+q²​

Answer 1

Answer:

p+q=13

pq=22

(p+q)²-2pq

(13)²-2(22)

169-44

125

Answer 2

now p+q=13

so, p=q-13

let it be eq---------1

q-13×q=22

2q-13=22

2q=22+13

2q=36

q=36/2

q=18

now p=q-13

so, p=18-13

p=5

$p ^{2} + q = 5 ^{2} + {18}^{2} \\ = 25 + 324 \\ so \: p ^{2} + q ^{2} = 349$

it is the answer

hope it helps

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