Sagot :
Bonsoir,
a)
A= 3x + 2x(x-4)+2x
= 5x + 2x²-8x
= 2x²-3x
b) 2x²-3x = x(2x-3)
c) 2x4²-3x4 = 2x16-12
= 32-12
= 20
ou 4(2x4-3) = 4(8-3)
= 32-12
= 20
Voilà
Bonsoir,
a)
A= 3x + 2x(x-4)+2x
= 5x + 2x²-8x
= 2x²-3x
b) 2x²-3x = x(2x-3)
c) 2x4²-3x4 = 2x16-12
= 32-12
= 20
ou 4(2x4-3) = 4(8-3)
= 32-12
= 20
Voilà