document.write( "Question 197405: Multiply.\r
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Algebra.Com's Answer #148051 by jim_thompson5910(35256) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " $\"%287x%2B7%29%284x%5E2%2B3x%2B3%29\"$ Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( " $\"7x%284x%5E2%2B3x%2B3%29%2B7%284x%5E2%2B3x%2B3%29\"$ Expand.\r
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Distribute.\r
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\n" ); document.write( "\n" ); document.write( " $\"28%2Ax%5E3%2B21%2Ax%5E2%2B21%2Ax%2B28%2Ax%5E2%2B21%2Ax%2B21\"$ Multiply.\r
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\n" ); document.write( "\n" ); document.write( " $\"28%2Ax%5E3%2B49%2Ax%5E2%2B42%2Ax%2B21\"$ Now combine like terms.\r
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\n" ); document.write( "\n" ); document.write( " So $\"%287x%2B7%29%284x%5E2%2B3x%2B3%29\"$ expands to $\"28%2Ax%5E3%2B49%2Ax%5E2%2B42%2Ax%2B21\"$ .\r
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\n" ); document.write( "\n" ); document.write( "In other words, $\"%287x%2B7%29%284x%5E2%2B3x%2B3%29=28%2Ax%5E3%2B49%2Ax%5E2%2B42%2Ax%2B21\"$ .
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