document.write( "Question 834668: The problem is: factor completely; (x^4)-5(x^2)(y^2)+(4y^4)
\n" ); document.write( "Any help is greatly appreciated! \n" ); document.write( "

Algebra.Com's Answer #503317 by LinnW(1048) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "Let a = x^2
\n" ); document.write( " b = y^2
\n" ); document.write( "and the equation becomes
\n" ); document.write( " $\"%28a%5E2%29-5%28a%29%28b%29%2B%284b%5E2%29\"$
\n" ); document.write( "or
\n" ); document.write( " $\"a%5E2-5ab%2B4b%5E2\"$
\n" ); document.write( "now factor
\n" ); document.write( " $\"%28a+-+1%29%28a+-+4%29\"$
\n" ); document.write( "substituting back
\n" ); document.write( " $\"%28x%5E2+-+1%29%28y%5E2+-+4%29\"$
\n" ); document.write( "Now we need to factor further
\n" ); document.write( " $\"%28x+%2B+1%29%28x+-+1%29%28y+%2B+2%29%28+y+-+2+%29\"$ \n" ); document.write( "

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