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Sagot :

PAMC

Bonjour,

47) a. A, C et D sont factorisé.

b. B=12+15x=3*4+3*5x=3(4+5x)

E=-2x+x²=-2*x+x*x=x(-2+x)

F=4t+4=4*t+4*1=4(t+1)

48) 1. a. P=x+x+x+5+4=3x+9

b. 3x+9=3*x+3*3=3(x+3)

2. x=2

3(x+3)=3(2+3)=3*5=15

x=3,5

3(x+3)=3(3,5+3)=3*6,5=19,5

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