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\((2x+1)^3=\)
\(4x^2+4x+1\)
\(8x^3+1\)
\(8x^3+12x^2+6x+1\)
\(8x^3+6x^2+6x+1\)
Factorisez \((a+1)^2+2(a+1)\)
\(a+3\)
\((a+1)(a+3)\)
\(a^2+4a+3\)
\((a+1)(3a+3)\)
Factorisez \(x^2+5x+6\)
\((x-2)(x-3)\)
\((x+2)(x+3)\)
\((x+2)(x-3)\)
impossible
Le quotient du polynôme \(x^3-x^2+x-6\) par \(x-2\) vaut
\(x^3-3x^2+x-20\)
\(x^2+x+3\)
\(x^3+x^2+3x\)
\(0\)
Effectuez \(-(1+x^3+x^2)(x-1)\)
\(x^4-x^2-x+1\)
\(x^4+2x^3+x^2+x+1\)
\(1-x+x^2+x^3\)
\(-x^4+x^2-x+1\)
\(4x^2-9y^2=\)
\((4x-9y)(4x+9y)\)
\((2x-3y)(2x+3y)\)
\((2x-3y)^2\)
\(-5x^2y^2\)
L'évaluation du polynôme \(P(x)= -3x^2+x-4\) en \(x=-2\) vaut
\(6\)
\(-18\)
\(-2\)
\(-16\)
Le polynôme \( x^2-3x+2\) est divisible par
\(x-2\)
\(x+1\)
\(x+2\)
\(x-5\)
Effectuez \((-x+2)^3\)
\(8-x^3\)
\(8-6x+6x^2-x^3\)
\(8-12x+6x^2-x^3\)
\(x^3-6x^2+12x-8\)
\((\sqrt{2}+1)(\sqrt{2}-1)=\)
\(\sqrt{2}-1\)
\(2\sqrt{2}-1\)
\(1\)
\(2-2\sqrt{2}-1\)
