document.write( "Question 503847: Short answer. Find the product:\r
\n" ); document.write( "\n" ); document.write( "-9x (x^3 – 3x^2 + 3x + 9) help \n" ); document.write( "
Algebra.Com's Answer #339441 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
your expression is:
\n" ); document.write( "-9x(x^3 – 3x^2 + 3x + 9)
\n" ); document.write( "if you rewrite it with multiplication sign included and enclosing the -9x in parentheses, then it will look like:
\n" ); document.write( "(-9x)*(x^3 - 3x^2 + 3x + 9)
\n" ); document.write( "the distributive laws of multiplication state:
\n" ); document.write( "a*(b+c) = (a*b) + (a*c)
\n" ); document.write( "we use that law in solving this problem to get:
\n" ); document.write( "((-9x) * (x^3)) - ((-9x) * (3x^2)) + ((-9x) * (3x)) + ((-9x) * 9)
\n" ); document.write( "we simplify this to get:
\n" ); document.write( "(-9x^4) - (-27x^3) + (-9x^2) + (-81x)
\n" ); document.write( "we simplify this further to get:
\n" ); document.write( "-9x^4 + 27x^3 - 9x^2 - 81x
\n" ); document.write( "it is easier to do the multiplication using pen and paper because then you can do the multiplication just like you would do an ordinary arithmetic multiplication.
\n" ); document.write( "the picture below shows you what i mean.
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