document.write( "Question 303447: how do you simplify (9x^-4y^2) ^-1/2 \n" ); document.write( "
Algebra.Com's Answer #217460 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
(9x^-4y^2) ^-1/2\r
\n" ); document.write( "\n" ); document.write( "= 1/ sqrt (9x^2-4y^2)\r
\n" ); document.write( "\n" ); document.write( "= 1/ sqrt {3x-2y)(3x+2y)}
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