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agnes19
@agnes19
June 2021
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Comment calculer 2 ( -1-x) au carré
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alidu14
2(-1-x)
=2*(-1)²-2*(-1)*(-x)+(-x)²
=2*1-2x+x²
=2-2x+x²
=x²-2x+2
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=2*(-1)²-2*(-1)*(-x)+(-x)²
=2*1-2x+x²
=2-2x+x²
=x²-2x+2