document.write( "Question 411649: I need help on solving this step by step , i don't know how to go about this problem when it has fractions.\r
\n" ); document.write( "\n" ); document.write( "Find the real solutions of the equation.\r
\n" ); document.write( "\n" ); document.write( "x2/3 - 2x1/3 - 15 = 0
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Algebra.Com's Answer #289306 by emargo19(101)\"\" \"About 
You can put this solution on YOUR website!
x2/3 - 2x1/3 - 15 = 0
\n" ); document.write( "\"%28x%5E2%29\"1/3 - 2x1/3 - 15 = 0
\n" ); document.write( "Let x1/3=u
\n" ); document.write( "Therefore the equation is \"u%5E2-2u-15=0\"
\n" ); document.write( "\"u%5E2%2B3u-5u-15=0\"
\n" ); document.write( "\"u%28u%2B3%29-5%28u%2B3%29=0\"
\n" ); document.write( "\"%28u-5%29%28u%2B3%29=0\"
\n" ); document.write( "\"u-5=0\" or \"u%2B3=0\"
\n" ); document.write( "\"u=5\" or \"u=-3\"
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