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Sagot :

Bonjour

Simplifier le plus possible

A. 8x x 4-2x

A = 32x - 2x

A = 30x

B.5x x 2x +4x x (-2x)

B = 10x² - 8x²

B = 2x²

C. 5y-2x+10-4x+7y-15

C = - 2x - 4x + 5y + 7y + 10 - 15

C = - 6x + 12y - 5.

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