document.write( "Question 549784: Find the following product: (y^2+4y-7)(y+3) \n" ); document.write( "

Algebra.Com's Answer #358058 by jim_thompson5910(35256) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( " $\"%28y%5E2%2B4y-7%29%28y%2B3%29\"$ Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( " $\"y%5E2%28y%2B3%29%2B4y%28y%2B3%29-7%28y%2B3%29\"$ Expand.\r
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Distribute.\r
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\n" ); document.write( "\n" ); document.write( " $\"y%5E3%2B3y%5E2%2B4y%5E2%2B12y-7y-21\"$ Multiply.\r
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\n" ); document.write( "\n" ); document.write( " $\"y%5E3%2B7y%5E2%2B5y-21\"$ Now combine like terms.\r
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\n" ); document.write( "\n" ); document.write( " So $\"%28y%5E2%2B4y-7%29%28y%2B3%29\"$ expands to $\"y%5E3%2B7y%5E2%2B5y-21\"$ .\r
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\n" ); document.write( "\n" ); document.write( "In other words, $\"%28y%5E2%2B4y-7%29%28y%2B3%29=y%5E3%2B7y%5E2%2B5y-21\"$ .
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