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OpenStudy (anonymous):
Factor by grouping. x3 + 5x2 - 2x - 10
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OpenStudy (bahrom7893):
\[x^3+5x^2-2x-10=x^2(x+5)-2(x+5)=(x+5)(x^2-2)=(x+5)(x-\sqrt(2)(x+\sqrt(2)\]
OpenStudy (bahrom7893):
\[(x+5)(x-\sqrt(2)(x+\sqrt(2)\]
OpenStudy (anonymous):
\[x^2(x+5)-2(x+5)=(x^2-2)(x+5)\]
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