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Factorisez \(2a(x-y)-3b(x-y)\)
\((x-y)^2(2a-3b)\)
\(2ax-2ay-3bx+3by\)
\((x^2-y^2)(2a+3b)\)
\((x-y)(2a-3b)\)
Déterminez \(p\) pour que le reste de la division de \(2x^3-px+2p+1\) par \(x-1\) valle 4.
\(p=\frac{129}{2}\)
\(p=\frac{5}{3}\)
\(p=1\)
\(p=-3\)
Effectuez \((xy-1)^2\)
\(x^2y^2-1-2xy\)
\(x^2y^2+1-2xy\)
\(x^2y^2+1-xy\)
\(x^2y^2-1\)
\((\sqrt{2}-1)^3=\)
\(5\sqrt{2}-7\)
\(2\sqrt{2}-1\)
\(6\sqrt{2}-7\)
\(7-5\sqrt{2}\)
Effectuez \((2x-1)^3\)
\(8x^3-1\)
\(8x^3-6x^2+6x-1\)
\(1-6x+12x^2-8x^3\)
\(8x^3-12x^2+6x-1\)
L'évaluation du polynôme \(P(x)= x^3+5x^2-4x+2\) en \(x=2\) vaut
\(0\)
\(24\)
\(2\)
\(22\)
Effectuez \((x+3y)+(2x-5y)-(4x+2y)\)
\(-(x+4y)\)
\(-x\)
\(-5xy\)
\(-(x-4y)\)
Factorisez \(x^3+2x^2-1\)
\((x-1)(x^2+x-1)\)
\(x^2(x+2)-1\)
\((x+1)(x^2+x-1)\)
\((x+1)(x^4+1)\)
Effectuez \((x^2+2x+9)-(x^2-4)+(x^2-x)\)
\(3x^2+x+13\)
\(x^2+x+13\)
\(x^2+x+5\)
\(x^2+x+12\)
\(8a^3-b^6=\)
\((2a-b^ 2)(4a^2+2ab^2+b^4)\)
\((2a-b^2)(4a^2+4ab^2+b^4)\)
\((2a-b^2)^3\)
\((2a-b^3)(4a^2+2ab^3+b^6)\)
