Réponse :
Explications étape par étape
Bonjour
Développer et réduire les expression (calcul littéral)
A (x+8) (x+10)
A = x^2 + 10x + 8x + 80
A = x^2 + 18x + 80
B (x+5) (3x+1)
B = 3x^2 + x + 15x + 5
B = 3x^2 + 16x + 5
C (x-5) (x-8)
C = x^2 - 8x - 5x + 40
C = x^2 - 13x + 40
D (x+9)^2
D = x^2 + 18x + 18
E (2x+3) (x+1)+(5x-3)
E = 2x^2 + 2x + 3x + 3 + 5x - 3
E = 2x^2 + 10x
F (y-6) (4y-11)-(1-35y)
F = 4y^2 - 11y - 24y + 66 - 1 + 35y
F = 4y^2 + 65
G (3t-7)^2 +(t-6) (t+2)
G = 9t^2 - 42t + 49 + t^2 + 2t - 6t - 12
G = 10t^2 - 46t + 37
H -3u^2-(4u-7) (5u-8)
H = -3u^2 - (20u^2 - 32u - 35u + 56)
H = -3u^2 - 20u^2 + 67u - 56
H = -23u^2 + 67u - 56
I (4x+3) (5x+2)
I = 20x^2 + 8x + 15x + 6
I = 20x^2 + 23x + 6
J (2x+7) (6x+4)
J = 12x^2 + 8x + 42x + 28
J = 12x^2 + 50x + 28
K (3x-4) (7x+5)
K = 21x^2 + 15x - 28x - 20
K = 21x^2 - 13x - 20
L (8x-1) (5x-7)
L = 40x^2 - 56x - 5x + 7
L = 40x^2 - 61x + 7
