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Aya2
@Aya2
April 2019
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Soient les expression A= (5 x - 3)2 ( le 2 c'est un petit 2) et B= (3 x - 7)(x - 6)
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thamazight
A= (5x-3)²
=(5x)² -3²
= 25x²+9
B=(3x-7) (x-6)
B= 3X * X + 3X * (-6) - 7 * X -7 * -6
= 3X² -18X -7X +42
= 3X² -25X +42
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=(5x)² -3²
= 25x²+9
B=(3x-7) (x-6)
B= 3X * X + 3X * (-6) - 7 * X -7 * -6
= 3X² -18X -7X +42
= 3X² -25X +42