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Sagot :

MISSHOPE
a=10[tex] x[/tex] +5+3[tex] x[/tex]+12
a= 13[tex] x[/tex] +17
développer et réduire

a=5(2x+1)+3(x+4)
=10x+5+3x+12
=13x+17

g=(-5x-3)(x+2)-(3x-4)(-x-2)
=-5x²-10x-3x-6+3x²+4x+6x+8
=-2x²-3x+2

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