Sagot :
Bonjour,
B = x² - 4(3-x) + x(2 - x) + 2
= x² -12 +4x + 2x -2x +2
= x² +4x -10
B= x² - 4(3-x) + x(2-x) +2
=x² - 4x3-4x + 2x -x² +2
= x²-12-4x+2x-x²+2
=-x²-x²-4x+2x+2-12
=-2x-10
Bonjour,
B = x² - 4(3-x) + x(2 - x) + 2
= x² -12 +4x + 2x -2x +2
= x² +4x -10
B= x² - 4(3-x) + x(2-x) +2
=x² - 4x3-4x + 2x -x² +2
= x²-12-4x+2x-x²+2
=-x²-x²-4x+2x+2-12
=-2x-10