document.write( "Question 75707: Find a polynomial f(x) of degree 3 that has the indicated zeros -2 1 5 and satisfies the given condition f(3)= -40.
\n" ); document.write( "I get most of the problem. THe thing that I dont understand is how they got from 2(x+2)(x-1)(x-5) to 2(x^3 - 4x^2 - 7x + 10)\r
\n" ); document.write( "\n" ); document.write( "thank you
\n" ); document.write( "

Algebra.Com's Answer #54386 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
I dont understand is how they got from 2(x+2)(x-1)(x-5) to 2(x^3 - 4x^2 - 7x + 10)
\n" ); document.write( "---------- \r
\n" ); document.write( "\n" ); document.write( "2(x+2)(x-1)(x-5)
\n" ); document.write( "=2(x+2)(x^2-6x+5)
\n" ); document.write( "=2[x^3-6x^2+5x+2x^2-12x+10)
\n" ); document.write( "=2[x^3-4x^2-7x+10]
\n" ); document.write( "===========
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" ); document.write( "
\n" );