document.write( "Question 139451: X^4-61x^2=-900 \n" ); document.write( "
Algebra.Com's Answer #101662 by checkley77(12844)\"\" \"About 
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X^4-61x^2=-900
\n" ); document.write( "x^4-61x^2+900=0
\n" ); document.write( "(x^2-36)(x^2-25)=0
\n" ); document.write( "(x+6)(x-6)(x+5)(x-5)=0
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