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Sagot :

VINS

bonsoir

on suppose que c'est au ²

( 7 x  - 5 )² - ( 3 x - 6 )²

= ( 7 x - 5 + 3 x - 6 ) ( 7 x - 5 - 3 x + 6 )

= ( 10 x - 11 ) ( 4 x + 1 )

Bonsoir,

Factoriser:

(7x-5)² -( 3x-6)²= (7x-5-3x+6)(7x-5+3x-6)= (4x+1)(10x-11)

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