bonjour
aire carré = ( 3 x - 4 )²
aire rectangle = ( 3 x - 4 ) ( 2 x - 5 )
aire totale
( 3 x - 4 )² + ( 3 x - 4 ) ( 2 x - 5 )
= ( 3 x - 4 ) ( 3 x - 4 + 2 x - 5 )
= ( 3 x - 4 ) ( 5 x - 9 )
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bonjour
aire carré = ( 3 x - 4 )²
aire rectangle = ( 3 x - 4 ) ( 2 x - 5 )
aire totale
( 3 x - 4 )² + ( 3 x - 4 ) ( 2 x - 5 )
= ( 3 x - 4 ) ( 3 x - 4 + 2 x - 5 )
= ( 3 x - 4 ) ( 5 x - 9 )