document.write( "Question 93751: If a and b are positive integers and (a^1/2 b^1/3)^6 = 432, what is the value of ab? \n" ); document.write( "
Algebra.Com's Answer #68340 by ankor@dixie-net.com(22740)\"\" \"About 
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If a and b are positive integers and (a^1/2 b^1/3)^6 = 432, what is the value of ab?
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\n" ); document.write( "\"%28a%5E%281%2F2%29%2Ab%5E%281%2F3%29%29%5E6\" = 432
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\n" ); document.write( "\"%28a%5E%286%2F2%29%2Ab%5E%286%2F3%29%29\" = 432
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\n" ); document.write( "\"a%5E3+%2A+b%5E2\" = 432
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\n" ); document.write( "Checking for some suitable factors of 432, we come up with
\n" ); document.write( "\"a%5E3+%2A+b%5E2\" = 27 * 16
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\n" ); document.write( "if a = 3; 3^3 = 27
\n" ); document.write( "and
\n" ); document.write( "if b = 4; 4^2 = 16
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\n" ); document.write( "a*b = 12
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\n" ); document.write( "There may be a more orthodox way to do this, but I can't seem to come up with it today.
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