bonjour
( x - 2.5 )²
= x² - 5 x + 6.25
Bonjour,
(x - 2,5)² = x × x + 2 × x × -2,5 + (-2,5)² = x² - 5x + 6,25.
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bonjour
( x - 2.5 )²
= x² - 5 x + 6.25
Bonjour,
(x - 2,5)² = x × x + 2 × x × -2,5 + (-2,5)² = x² - 5x + 6,25.