document.write( "Question 367560: Solving (2x+3)(2x+5)(x-1)(x-2)=30, the roots available are : \n" ); document.write( "
Algebra.Com's Answer #262958 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Multiply out the left hand side.
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\n" ); document.write( "\"%282x%2B3%29%282x%2B5%29%28x-1%29%28x-2%29=%284x%5E2%2B16x%2B15%29%28x%5E2-3x%2B2%29\"
\n" ); document.write( "\"%282x%2B3%29%282x%2B5%29%28x-1%29%28x-2%29=4x%5E4%2B4x%5E3-25x%5E2-13x%2B30\"
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\n" ); document.write( "\"4x%5E4%2B4x%5E3-25x%5E2-13x%2B30=30\"
\n" ); document.write( "\"4x%5E4%2B4x%5E3-25x%5E2-13x=0\"
\n" ); document.write( "\"x%284x%5E3%2B4x%5E2-25x-13%29=0\"\r
\n" ); document.write( "\n" ); document.write( "\"x%282x%2B1%29%282x%5E2%2Bx-13%29=0\"
\n" ); document.write( "Four real solutions:
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\n" ); document.write( "\"2x%2B1=0\"
\n" ); document.write( "\"2x=-1\"
\n" ); document.write( "\"highlight%28x=-1%2F2%29\"
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\n" ); document.write( "\"2x%5E2%2Bx-13=0\"
\n" ); document.write( " \"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
\n" ); document.write( " \"x+=+%28-1+%2B-+sqrt%28+1%5E2-4%2A2%2A%28-13%29+%29%29%2F%282%2A2%29+\"
\n" ); document.write( "\"highlight%28x+=+%28-1+%2B-+sqrt%28+105+%29%29%2F%284%29%29+\"
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