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Effectuez \((2x^3+x^2+3)(2x^2-x+1)\)
\(2x^3+2x^2-x+3\)
\(4x^5-x^3+3\)
\(4x^5+x^3+7x^2-3x+3\)
\(4x^6+x^3+7x^2-3x+3\)
Factorisez \(x^2+5x+6\)
\((x-2)(x-3)\)
\((x+2)(x+3)\)
\((x+2)(x-3)\)
impossible
\((2x+1)^3=\)
\(4x^2+4x+1\)
\(8x^3+1\)
\(8x^3+12x^2+6x+1\)
\(8x^3+6x^2+6x+1\)
\((a^3-b)(a^3+b)=\)
\(a^6+b^2-2a^3b\)
\(a^5-b^2\)
\(a^6+b^2\)
\(a^6-b^2\)
Factorisez \((a+1)^2+2(a+1)\)
\(a+3\)
\((a+1)(a+3)\)
\(a^2+4a+3\)
\((a+1)(3a+3)\)
Factorisez \(x^5-8x^3+16x\)
\(x(x^2+4)^2\)
\(x(x^4+16)^2\)
\(x(x+4)^2\)
\(x(x^2-4)^2\)
Le quotient du polynôme \(-2x^4+8x^3-16x+8\) par \(2x^2-4\) vaut
\(-x^2+4x+2\)
\(x^2-4x+2\)
\(-x^2+4x-2\)
\(0\)
\((\sqrt{2}+1)(\sqrt{2}-1)=\)
\(\sqrt{2}-1\)
\(2\sqrt{2}-1\)
\(1\)
\(2-2\sqrt{2}-1\)
L'évaluation du polynôme \(P(x)= x^3+5x^2-4x+2\) en \(x=-3\) vaut
\(32\)
\(-58\)
\(-3\)
\(28\)
Le polynôme \( 4x^2+2x-12\) est divisible par
\(x-2\)
\(2+x\)
\(x-1\)
\(3+x\)
