bonjour
programme 1
x
x - 3
4 ( x - 3 ) = 4 x - 12
4 x -12 + x²
= x² + 4 x - 12
si on prend - 2
= ( - 2 )² + 4 ( -2) - 12 = 4 - 8 - 12 = - 16
programme 2
x + 2
( x + 2 )² - 16
x² + 4 x + 4 - 16
donc programme 1 = programme 2
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bonjour
programme 1
x
x - 3
4 ( x - 3 ) = 4 x - 12
4 x -12 + x²
= x² + 4 x - 12
si on prend - 2
= ( - 2 )² + 4 ( -2) - 12 = 4 - 8 - 12 = - 16
programme 2
x
x + 2
( x + 2 )² - 16
x² + 4 x + 4 - 16
= x² + 4 x - 12
donc programme 1 = programme 2