document.write( "Question 348365: 2x^(2/3) - 5x^(1/3) - 12 = 0 solve for x \n" ); document.write( "

Algebra.Com's Answer #249092 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use a substitution, $\"u=x%5E%281%2F3%29\"$ , $\"u%5E2=x%5E%282%2F3%29\"$
\n" ); document.write( " $\"2u%5E2+-++5u+-+12+=+0\"$
\n" ); document.write( " $\"2u%2B3%29%28u-4%29=+0\"$
\n" ); document.write( "Two solutions:
\n" ); document.write( " $\"2u%2B3=0\"$
\n" ); document.write( " $\"2u=-3\"$
\n" ); document.write( " $\"u=-3%2F2\"$
\n" ); document.write( " $\"x%5E%281%2F3%29=-3%2F2\"$
\n" ); document.write( " $\"highlight%28x=-27%2F8%29\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"u-4=0\"$
\n" ); document.write( " $\"u=4\"$
\n" ); document.write( " $\"x%5E%281%2F3%29=4\"$
\n" ); document.write( " $\"highlight%28x=64%29\"$
\n" ); document.write( " \n" ); document.write( "

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