document.write( "Question 688189: How do you solve the quadratic equation\r
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Algebra.Com's Answer #425541 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How do you solve the quadratic equation
\n" ); document.write( "16x^2-21=0
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\n" ); document.write( "Factor:
\n" ); document.write( "(4x-sqrt(21))(4x+sqrt(21)) = 0
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\n" ); document.write( "x = sqrt(21)/4 or x = -sqrt(21)/4
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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