Homework Help: math

Posted by Nick on Friday, February 11, 2011 at 10:10pm.

Andrew factored the expression 54x^3-30x^2+15x as 5x(9x^2-6x+3) but when Melissa applied the distributive law and multiplied out 5x(9x^2-6x+3). she got 45x^3-30x^2+15x. thus andrew's solution does not appear to check. why is this? eplain your reasoning and correctly factor the original expression if possible.If the expression is a prime state so

math - Bosnian, Friday, February 11, 2011 at 11:39pm
What is your exspresion?

54x^3-30x^2+15x
OR
45x^3-30x^2+15x

54x^3-30x^2+15x=3x*(18x^2-10x+5)

45x^3-30x^2+15x=15x*(3x^2-2x+1)

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