document.write( "Question 174050: The measure of the area of a rectangle is 4x2+7x-15. If hedemensions of the rectangle are representd by polynomials, find the demensions of the rectangle and then find its perimeter if each side is increased by 4 units. \n" ); document.write( "
Algebra.Com's Answer #128960 by stanbon(75887)\"\" \"About 
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The measure of the area of a rectangle is 4x2+7x-15. If dimensions of the rectangle are representd by polynomials, find the dimensions of the rectangle and then find its perimeter if each side is increased by 4 units.
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\n" ); document.write( "4x2+7x-15
\n" ); document.write( "Factor:
\n" ); document.write( "= 4x^2 +12x - 5x - 15\r
\n" ); document.write( "\n" ); document.write( "= 4x(x+3) -5(x+3)\r
\n" ); document.write( "\n" ); document.write( "= (x+3)(4x-5
\n" ); document.write( "These are the dimensions.
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\n" ); document.write( "Increased dimentions: x+7 and 4x-1\r
\n" ); document.write( "\n" ); document.write( "Perimeter = 2(L + W)
\n" ); document.write( "= 2(x+7 + 4x-1)
\n" ); document.write( "= 2(5x+6)
\n" ); document.write( "= 10x+12
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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