bonsoir
( x + 3 ) ( x - 3 ) - 5 ( x -3 )²
= ( x - 3 ) ( x + 3 - 5 x + 15 )
= ( x - 3 ) ( - 4 x + 18 )
= 2 ( x - 3 ) ( - 2 x + 9 )
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Verified answer
bonsoir
( x + 3 ) ( x - 3 ) - 5 ( x -3 )²
= ( x - 3 ) ( x + 3 - 5 x + 15 )
= ( x - 3 ) ( - 4 x + 18 )
= 2 ( x - 3 ) ( - 2 x + 9 )