Sagot :
Z=4(x+3(X+2(x+1)))
Z = 4x +12 (x+2( x +1))
Z= 4x +12x +24 ( x+1)
Z = 16x +24x + 24
Z= 40x +24
ou
Z=4(x+3(X+2(x+1))
Z= 4( x +3( x +2x 2))
Z= 4( x +3 (3x + 2)
Z= 4( x +9x +6)
Z= 4(10x +6)
Z= 40x + 24
développer et réduire Z=4(x+3(X+2(x+1))) détailler vos calculs .
Merci
Z=4(x+3(X+2(x+1)))
Z = 4x +12 (x+2( x +1))
Z= 4x +12x +24 ( x+1)
Z = 16x +24x + 24
Z= 40x +24
ou
Z=4(x+3(X+2(x+1))
Z= 4( x +3( x +2x 2))
Z= 4( x +3 (3x + 2)
Z= 4( x +9x +6)
Z= 4(10x +6)
Z= 40x + 24