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Iugagabriel201
a fost răspuns

Ex 2 va rooooggggggggggggggggggggggggggggggggggg

Ex 2 Va Rooooggggggggggggggggggggggggggggggggggg class=

Răspuns :


a - b = 2⁻¹ ⇔ a - b = 1/2 ⇔ 2a - 2b = 1 ⇔ (2a - 2b)² = 1² ⇔

⇔ 4a² + 4b² - 8ab = 1 ⇔  4a² + 4b² - 8ab - 1 = 0.




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