bonsoir
f ( 0 ) = 3
f (x) < g (x) sur [ - 4 .5 ; - 3 [ et ] 0 ; 3 [
A (x) = ( 2 x - 5 )² - ( 2 x - 5 ) ( 3 + x )
a (x) = 4 x² - 20 x + 25 - ( 6 x + 2 x² - 15 - 5 x )
A (x) = 4 x² - 20 x + 25 - 6 x - 2 x² + 15 + 5 x
A (x) = 2 x² - 21 x + 40
A (x) = ( 2 x - 5 ) ( 2 x - 5 - 3 - x )
a (x) = ( 2x - 5 ) ( x - 8 )
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bonsoir
f ( 0 ) = 3
f (x) < g (x) sur [ - 4 .5 ; - 3 [ et ] 0 ; 3 [
A (x) = ( 2 x - 5 )² - ( 2 x - 5 ) ( 3 + x )
a (x) = 4 x² - 20 x + 25 - ( 6 x + 2 x² - 15 - 5 x )
A (x) = 4 x² - 20 x + 25 - 6 x - 2 x² + 15 + 5 x
A (x) = 2 x² - 21 x + 40
A (x) = ( 2 x - 5 ) ( 2 x - 5 - 3 - x )
a (x) = ( 2x - 5 ) ( x - 8 )