document.write( "Question 404597: Please help solve:\r
\n" ); document.write( "\n" ); document.write( "Show all work: The area of a rectangular swimming pool is given by 2x^2+x-10ft^2. One side length of the pool is given by 2x+5 ft. What is an algebric expression for the length of the pool? Simplify and include correct units.
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Algebra.Com's Answer #285932 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "The area \"A\" of a rectangular swimming pool is given by \"2x%5E2%2Bx-10ft%5E2\".\r
\n" ); document.write( "\n" ); document.write( "so, you have:
\n" ); document.write( "\"A+=+%282x%5E2%2Bx-10%29ft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "One side length \"a\" of the pool is given by \"%282x%2B5%29ft\"....so, we have \r
\n" ); document.write( "\n" ); document.write( "\"a+=+%282x%2B5%29ft\" \r
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\n" ); document.write( "\n" ); document.write( "What is an algebraic expression for the length of the pool \"b\"?
\n" ); document.write( "Simplify and include correct units.\r
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\n" ); document.write( "\n" ); document.write( "we know that:\r
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\n" ); document.write( "\n" ); document.write( "\"A+=+ab\"\r
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\n" ); document.write( "\n" ); document.write( "\"b+=+A%2Fa\"...now substitute \"A+=+%282x%5E2%2Bx-10%29ft%5E2\" and \"a+=+%282x%2B5%29ft\"\r
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\n" ); document.write( "\n" ); document.write( "\"b+=+%282x%5E2%2Bx-10%29ft%5E2%2F%282x%2B5%29ft\"....simplify...replace \"1x\" with \"-4x+%2B5x\"\r
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\n" ); document.write( "\n" ); document.write( "\"b+=+%282x%5E2+-4x+%2B5x-10%29ft%5Ecross%282%291%2F%282x%2B5%29cross%28ft%29\"...group\r
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\n" ); document.write( "\n" ); document.write( "\"b+=+%28%282x%5E2+-4x%29+%2B%285x-10%29%29ft%2F%282x%2B5%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"b+=+%282x%28x+-2%29+%2B5%28x-2%29%29ft%2F%282x%2B5%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"b+=+%28%282x%2B5%29%28x-2%29%29ft%2F%282x%2B5%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"b+=+%28cross%28%282x%2B5%29%29%28x-2%29%29ft%2Fcross%28%282x%2B5%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"b+=+%28x-2%29ft\"\r
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