Question 677093
2x(4Xsquare+5)(-6Xcube+5) 
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2x(4x^2+5)(-6x^3+5)
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= 2x(-24x^5-30x^4+20x^2+25)
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= -48x^5 - 60x^4 + 40x^3 +50x
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Cheers,
Stan H.