Bonsoir,
[tex]U=(-5x+7)-(8-3x)+x\\U=-5x+7-8+3x+x\\U=-x-1[/tex]
[tex]V=9x-(-5+x)+(-4x+2)\\V=9x+5-x-4x+2\\V=4x+7[/tex]
[tex]W=4x^2-(2r^2-3x+1)+(-6x+7)\\W=4x^2-2r^2+3x-1-6x+7\\W=4x^2-2r^2-3x+6[/tex]
bonsoir,
U = -5x + 7 - 8+3x + x
= -x -1
V = 9x +5 - x - 4x + 2
=4 x +7
W = 4x² - 2r² + 3x - 1 - 6x + 7
= 4x² -2r² -3x +6
excuse moi, j'ai corrigé!
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Bonsoir,
[tex]U=(-5x+7)-(8-3x)+x\\U=-5x+7-8+3x+x\\U=-x-1[/tex]
[tex]V=9x-(-5+x)+(-4x+2)\\V=9x+5-x-4x+2\\V=4x+7[/tex]
[tex]W=4x^2-(2r^2-3x+1)+(-6x+7)\\W=4x^2-2r^2+3x-1-6x+7\\W=4x^2-2r^2-3x+6[/tex]
bonsoir,
U = -5x + 7 - 8+3x + x
= -x -1
V = 9x +5 - x - 4x + 2
=4 x +7
W = 4x² - 2r² + 3x - 1 - 6x + 7
= 4x² -2r² -3x +6
excuse moi, j'ai corrigé!