document.write( "Question 175681: 4.) Simplify (3x – 5)(2x +1)\r
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\n" ); document.write( "\n" ); document.write( "5) Simplify (x2 + 4)(x2 – 5)\r
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Algebra.Com's Answer #130782 by stanbon(75887)\"\" \"About 
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4.) Simplify (3x – 5)(2x +1)
\n" ); document.write( "= 6x^2 + 3x -10x -5
\n" ); document.write( "= 6x^2 -7x -5
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\n" ); document.write( "\n" ); document.write( "5) Simplify (x^2 + 4)(x^2 – 5)
\n" ); document.write( "= x^4 -5x^2 + 4x^2 - 20
\n" ); document.write( "= x^4 -x^2 -20
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\n" ); document.write( " Cheers,
\n" ); document.write( "Stan H.
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