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Factor out -2x^3+6x+4

User JEROM JOY
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1 Answer

5 votes
Hi,

-2x^3+6x+4=-2(x^3-3x-2)\\ =-2(x^3+x^2-x^2-x-2x-2)\\ =-2(x^2(x+1)-x(x+1)-2(x+1))\\ =-2(x+1)(x^2-x-2)\\ =-2(x+1)(x^2+x-2x-2)\\ =-2(x+1)(x(x+1)-2(x+1))\\ =-2(x-2)(x-1)^2 \\


User Colm Troy
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