Réponse:
A = 1 - 5t - 9t + 5
A = 1 - 14t + 5
A = 6 - 14t
B = distribuer et multiplier
B = 10y^3 - 5y^2
B = 5 ( 2y - 1 ) y^2
C = distribuer et multiplier
C = x^3 + x√3 - √3x^2 - ( √3 )√^2
C = x^3 + x√ 3 - √3x^2 - 3
C = ( x - √3) ( x^2 + √3 )
D = 18 - 2 ( 4a - 1 ) ( a/2 + 5
D = 18 - 8a X ( a/2 ) - 40a + 2 X ( a/2 ) + 10
D = 18 - 4aa - 40a + 2 X ( a/2 ) + 10
D = 18 - 4aa - 40a + 2a/2 + 10
D = 18 - 4aa - 40a + a + 10
D = 18 - 4aa - 39a + 10
D = 18 - 4a^2 - 39a + 10
D = 28 - 4a^2 - 39 a
