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Sagot :

Bonjour,

K = 5x * (3x - 5)

1°) x = 5

(5*5) (15 -5)

25 *(15-5) =

25* 10 = 250

2°) x = 2

5*2)( 6-5) =  

10 * 1 = 10

3°) x = -2

-10 * -11 = 110

4°) x = -7​

-35* -26 = -910

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