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Sagot :

( 2 x - 6 ) ( x + 8 ) = 2 x 2 + 1 0 x − 4 8

(2x-6)(x+8)

=2x*x+2x*8+(-6)*x+(-6)*8

=2x²+16x+(-6x)+(-48)

=2x²+10x-48

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