Bonjour,
a) x - 4 + 4/x
= x²/x - 4x/x + 4/x
= (x² - 4x + 4) / x
= (x - 2)² / x ✅
b) 4x + 25/(x - 5)
= 4x(x -5)/(x - 5) + 25/(x - 5)
= (4x² - 20x + 25) / (x - 5)
= (2x - 5)² / (x - 5) ✅
bonne journée !
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Bonjour,
a) x - 4 + 4/x
= x²/x - 4x/x + 4/x
= (x² - 4x + 4) / x
= (x - 2)² / x ✅
b) 4x + 25/(x - 5)
= 4x(x -5)/(x - 5) + 25/(x - 5)
= (4x² - 20x + 25) / (x - 5)
= (2x - 5)² / (x - 5) ✅
bonne journée !