document.write( "Question 162841: . Multiply:
\n" ); document.write( "(x – 4)(2x2 – 7x + 8)
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #120023 by jim_thompson5910(35256) $\"\"$ $\"About$

You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( " $\"%28x-4%29%282x%5E2-7x%2B8%29\"$ Start with the given expression.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"x%282x%5E2-7x%2B8%29-4%282x%5E2-7x%2B8%29\"$ Expand. Remember, $\"%28A%2BB%29%28C%2BD%2BE%29=A%28C%2BD%2BE%29%2BB%28C%2BD%2BE%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

Distribute.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"2%2Ax%5E3-7%2Ax%5E2%2B8%2Ax-8%2Ax%5E2%2B28%2Ax-32\"$ Multiply.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"2%2Ax%5E3-15%2Ax%5E2%2B36%2Ax-32\"$ Now combine like terms.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " So $\"%28x-4%29%282x%5E2-7x%2B8%29\"$ expands to $\"2%2Ax%5E3-15%2Ax%5E2%2B36%2Ax-32\"$ .\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "In other words, $\"%28x-4%29%282x%5E2-7x%2B8%29=2%2Ax%5E3-15%2Ax%5E2%2B36%2Ax-32\"$ .
\n" ); document.write( " \n" ); document.write( "

\n" );