document.write( "Question 123145This question is from textbook College Algebra Essentials
\n" ); document.write( ": Please can you help me, I tried figuring it out but no luck.
\n" ); document.write( "4x^4= 13x^2-9
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Algebra.Com's Answer #90395 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
4x^4-13x^2+9=0\r
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\n" ); document.write( "\n" ); document.write( "factoring __ (4x^2-9)(x^2-1)=0 __ both factors are difference of two squares\r
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\n" ); document.write( "\n" ); document.write( "factoring (again) __ (2x+3)(2x-3)(x+1)(x-1)=0
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