Question

If p+q = 5 and pq = 6 find the value of p2 + q2​

Answer 1

Answer:

p=2

q=3

value of P2= 2×2= 4

value of q2= 3×3= 9

Answer 2

Answer:

(p+q)2 = p2 + 2pq + q2

(5)2 = p2 + 2(6) + q2

25 = p2 + 12 + q2

p2+q2= 25 - 12

p2 + q2 = 13

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