document.write( "Question 158240: multiply and simplify (2xs+3)(5x2-6x-3) second part is 5x squared \n" ); document.write( "

Algebra.Com's Answer #116606 by jim_thompson5910(35256) $\"\"$ $\"About$

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Is the expression $\"%282x%5E2%2B3%29%285x%5E2-6x-3%29\"$ ??\r
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\n" ); document.write( "\n" ); document.write( " $\"%282x%5E2%2B3%29%285x%5E2-6x-3%29\"$ Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( " $\"2x%5E2%285x%5E2-6x-3%29%2B3%285x%5E2-6x-3%29\"$ Expand. Remember $\"%28a%2Bb%29%28c%2Bd%2Be%29=a%28c%2Bd%2Be%29%2Bb%28c%2Bd%2Be%29\"$ \r
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Distribute.\r
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\n" ); document.write( "\n" ); document.write( " $\"10%2Ax%5E4-12%2Ax%5E3-6%2Ax%5E2%2B15%2Ax%5E2-18%2Ax-9\"$ Multiply.\r
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\n" ); document.write( "\n" ); document.write( " $\"10%2Ax%5E4-12%2Ax%5E3%2B9%2Ax%5E2-18%2Ax-9\"$ Now combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "So $\"%282x%5E2%2B3%29%285x%5E2-6x-3%29\"$ expands to $\"10%2Ax%5E4-12%2Ax%5E3%2B9%2Ax%5E2-18%2Ax-9\"$ .\r
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\n" ); document.write( "\n" ); document.write( "In other words, $\"%282x%5E2%2B3%29%285x%5E2-6x-3%29=10%2Ax%5E4-12%2Ax%5E3%2B9%2Ax%5E2-18%2Ax-9\"$ .
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