Question

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Answer 1

Răspuns:

p(2q+1)+q(2p+1)=2(p²+q²)

2pq+p+2pq+q=2p²+2q²

p+q=2p²+2q²-4pq

(p+q)=2(p²-2pq+q²)

(p+q)=2(p-q)²

p=3

q=5

3+5=2(3-5)²

8=2*(-2)²

8=2*4

Evident

Explicație pas cu pas:

Answer 2

Răspuns:

Am aratat de ce soluția p=3,q=5 e unica.