Bonsoir,
Simplifier les expressions littérales suivantes :
a) g = 7 x m - 3
g = 7m - 3
b) h= CXC + 5 x
h = c² + 5x
c) k= (8 XS - 5) x (4 - 6 xr)
k = (8s - 5) (4 - 6xr)
k = 32s - 48xrs - 20 + 30xr
d) m = 7 - dxd + 3 x (5 + d)
m = 7 - d² + 15 + 3d
m = - d² + 3d + 22.
