Answered

Bonsoir, j'aimerai que vous m'aidiez à factoriser les expressions suivantes :

A = ( 3x + 7 ) ( 6x - 2 ) + 8 ( 6x - 2 )

B = ( 5 - 2x ) ( 4x - 3 ) - ( 4x - 3 ) ( 8x - 2 )

C = ( x + 6 )² - ( -3x + 8 ) ( x + 6 )

D = ( 4x + 1 ) ( 3x - 1 ) + ( 1 - 3x ) ( 5x - 9 )

Sagot :

Bonjour

A = ( 6x - 2 ) ( 3x + 7 + 8 )

= ( 6x - 2) (3x + 15 )

= 2( 3x - 1 ) 3( x +5 )

= 6 ( 3x-1)(x+5)

B = (5 - 2x ) ( 4x-3-8x+2)

= (5 - 2 x) ( -4x - 1 )

C = ( x+6) ( x+6 +3x - 8 )

= ...

D = ( 4x + 1 ) ( 3x - 1 ) - ( 3x - 1 ) ( 5x - 9 )

= ( 3x - 1) ( 4x + 1 - 5x + 9)

= ...

Bonne journée