document.write( "Question 274577: Simplify. State any restrictions on the variable.\r
\n" ); document.write( "\n" ); document.write( "(4x^2 - 25) / (2x^2 + 3x - 20)
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Algebra.Com's Answer #200368 by dabanfield(803)\"\" \"About 
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(4x^2 - 25) / (2x^2 + 3x - 20)\r
\n" ); document.write( "\n" ); document.write( "The denominator cannot be zero so we need to solve:\r
\n" ); document.write( "\n" ); document.write( "2x^2 + 3x - 20 = 0\r
\n" ); document.write( "\n" ); document.write( "(2x-5)*(x+4) = 0\r
\n" ); document.write( "\n" ); document.write( "The denominator becomes zero when either:\r
\n" ); document.write( "\n" ); document.write( "2x-5 = 0 or \r
\n" ); document.write( "\n" ); document.write( "x+4 = 0 \r
\n" ); document.write( "\n" ); document.write( "Solve each of these for x.
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