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Factorisez \(2x^3-x^2-18x+9=\)
\((2x-3)^3\)
\((2x-1)(x^2+9)\)
\((x-9)(x+9)(6x+1)\)
\((2x-1)(x-3)(x+3)\)
Factorisez \(x^7-3x^5+3x^3-x\)
\(x(x-1)^3(x+1)^3\)
\(x(x^2-1)(x^4-3x^2-1)\)
\(x(x^2-1)(x^4-3x^3+x^2+1)\)
\(x^6-3x^4+3x^2-1\)
Factorisez \(6x-3x^2-3\)
\(3(x+1)^2\)
\(3(1-x)^2\)
\(x^2-2x+1\)
\(-3(x-1)^2\)
Factorisez \(x^3+4x^2+5x+6\)
\((x+3)(x^2+x+2)\)
\((x-3)(x^2+x+2)\)
\((x^3+4x^2)(5x+6)\)
\(x(x^2+4x+5)+6\)
Quel polynôme faut-il ajouter à \(x+5\) pour obtenir \(4x-1\) ?
\(3x+4\)
\(4x-6\)
\(3x-6\)
\(4-6\)
Effectuez \((x-1)(x^2+1)-x^3+(x^2-1)(x+x^2+1)-(x^3-1)x\)
\(x^3+x^2-x+2\)
\(x^3-x^2-x-2\)
\(0\)
\(x^3-x^2+x-2\)
La division de \(x^5+x^4-3x^3-2+3x\) par \( x-x^3-1\) est-elle exacte ?
oui
non
je ne sais pas
Effectuez \((4x^2-3x)+[2-(x+x^2)-3x^3]-[(2x-1)-x^3]\)
\(-4x^3+5x^2-6x+1\)
\(2x^3+3x^2-6x+3\)
\(-2x^3+3x^2-6x+3\)
\((a^2-b)^3=\)
\(a^6-b^3\)
\((a^2-b)(a^4+a^2b+b^2)\)
\(a^5-3a^4b+3a^2b^2-b^3\)
\(a^6 -3a^4b+3a^2b^2-b^3\)
Factorisez \(a-2b-ax+2bx\)
\((a-2b)(1-x)\)
\((a-2b)(-x)\)
\((a+2bx)(a-2bx)\)
\((a-2b)(1+x)\)
