Salut! =)
x² - y² = 24
x + y = 8
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x , y = ?
x² - y² = 24 => ( x - y )² = 24 => x - y = √24
x - y = 2√6
x - y = 2√6 => x = 2√6 + y
Inlocuim in a doua formula
2√6 + y + y = 8
2√6 + 2y = 8
2y = 8 - 2√6
y = ( 8 - 2 √6 ) /2
y = 2 ( 4 - √6 ) / 2
y = 4 - √6
x = 2√6 + 4 -√6
x = √6 + 4
Bafta! =)
