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Sagot :

Bonjour,

Factoriser:

55x+22xy-66y²= 11(2xy+5x-6y²)

56x^3+35x²-28xy+63x= 7x(8x²+5x-4y+9)

Simplifier:

3x/2+ 5x/3= (3*3x+2*5x) /(2*3)= 19x/6

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