document.write( "Question 830859: Find the real solution × to the 4th power minus 5x squared plus 4 equals zero \n" ); document.write( "
Algebra.Com's Answer #500958 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
× to the 4th power minus 5x squared plus 4 equals zero\r
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\n" ); document.write( "x^4 - 5x^2 + 4 = 0
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\n" ); document.write( "(x^2-4)(x^2-1) = 0
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\n" ); document.write( "x^2-4 = 0 or x^2-1 = 0
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\n" ); document.write( "x = 2 or x = -2 or x = 1 or x = -1
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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