A = 9* (-3) + 9*y A = -27 + 9y
B = -6*2x + (-6)*(-7) B = -12x +42
C = 8*3t + 8*2 C = 24t + 16
D = -8 *9 + (-8) * (-7x) D = -72 + 56x
E = -8z * 4 + (-8z) * (-3z) E = -32 z + 24 z²
F = 3y * (-4) + 3y* 6y F = -12y + 18 y²
Exercice suivant
A = x*x + x*4 A= x² + 4x
B = 7y *2 + 7y * (-9y) B= 14 y - 63y²
C = -2y* 5t + (-2y) * (-4) C = -10 y + 8y²
D = 4t *9 + 4t* (-3t) D= 36t - 12t²
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A = 9* (-3) + 9*y A = -27 + 9y
B = -6*2x + (-6)*(-7) B = -12x +42
C = 8*3t + 8*2 C = 24t + 16
D = -8 *9 + (-8) * (-7x) D = -72 + 56x
E = -8z * 4 + (-8z) * (-3z) E = -32 z + 24 z²
F = 3y * (-4) + 3y* 6y F = -12y + 18 y²
Exercice suivant
A = x*x + x*4 A= x² + 4x
B = 7y *2 + 7y * (-9y) B= 14 y - 63y²
C = -2y* 5t + (-2y) * (-4) C = -10 y + 8y²
D = 4t *9 + 4t* (-3t) D= 36t - 12t²