document.write( "Question 1167980: A television screen is 16cm by 22cm. The manufacturer wants to increase the outer edge by a uniform width to double the area. Find the uniform width to the nearest cm. \n" ); document.write( "
Algebra.Com's Answer #792578 by ikleyn(52776)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "New dimensions are  (16+2x) by (22+2x).\r\n" );
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document.write( "The area equation is\r\n" );
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document.write( "    (16+2x) * (22+2x) = 2*16*22\r\n" );
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document.write( "Simplify and solve for x\r\n" );
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document.write( "    16*22 + 44x + 32x + 4x^2 = 2*16*22\r\n" );
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document.write( "    4x^2 + 76x - 16*22 = 0\r\n" );
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document.write( "     x^2 + 19x - 88 = 0\r\n" );
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document.write( "At this point, use the quadratic formula and choose positive root.\r\n" );
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document.write( "ANSWER.  3.851 cm (approximately).\r\n" );
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\n" ); document.write( "\n" ); document.write( "If you want to see many other similar solved problems, look into the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Problems on the area and the dimensions of a rectangle surrounded by a strip\r
\n" ); document.write( "\n" ); document.write( "    - Cynthia Besch wants to buy a rug for a room \r
\n" ); document.write( "\n" ); document.write( "    - Problems on a circular pool and a walkway around it\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lesson is the part of this online textbook under the topic
\n" ); document.write( "\"Dimensions and the area of rectangles and circles and their elements\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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