bonjour
A = 20 - 10 x
B = 3 x - x + 3 = 2 x + 3
C = 8 - 4 + 20 x = 20 x + 4
d = - 12x + 30 - 30 = - 12 x
- 5 - 8 = - 5 - 8
- 13 = - 13
- 9 + 2 = - 9 + 2
- 7 = - 7
- a - b = - a - b
A = 2 + 2 x = 2 ( 1 + x )
B = 5 ( 1 - 3 x )
C = x ( 1 + y )
d = x ( 3 + x )
e = 6 x ( 1 - 3 x )
5 x + x + 3 + 7 x + 1 + 10 x - 0.5 + x + 3
= 24 x + 6.5
u *9 * v * 7 = 63 uv
8*a + a*a = 8 a + a²
3*b *b*b - 2 *b *b = 3 b ³ - 2 b²
17 a - 4 a + 11 a = 24 a
18 x + 6 = 6 ( 3 x + 1 )
4 x² - 3 xy = x ( 4 x - 3 y )
