document.write( "Question 20301: I have tried every way i can think of to simplify this type of equation and have looked through my book, please help me find out how to do these problems. I would really appreciate it if someone could help me with this problem.
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document.write( "One of the questions is:\r
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document.write( "In this and the following problem, simplify the expression and enter the resulting exponent as a fraction, after canceling common factors in numerator and denominator. \r
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document.write( "(x^2/3 x^1/4)/x^1/7=x^r
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document.write( "where r=?/? \n" );
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Algebra.Com's Answer #9797 by suresh(20)![]() ![]() ![]() You can put this solution on YOUR website! Given: \n" ); document.write( "(x^2/3 x^1/4)/(x^1/7)=x^r.\r \n" ); document.write( "\n" ); document.write( "Law of indices: \n" ); document.write( " x^m * x^n = x^(m+n)-------(1)\r \n" ); document.write( "\n" ); document.write( " x^x / x^n = x^(m-n) ------(2)\r \n" ); document.write( "\n" ); document.write( "Law of exponents: \n" ); document.write( "x^m = x^n if and only if m = n -----(3)\r \n" ); document.write( "\n" ); document.write( "x^r = x^(2/3 + 1/4 )/x^1/7 (Using (1))\r \n" ); document.write( "\n" ); document.write( " = x^(11/12)/x^1/7 (Simplifying by LCD Method)\r \n" ); document.write( "\n" ); document.write( " = x^(11/12 - 1/7 ) (Using (2))\r \n" ); document.write( "\n" ); document.write( " = x^(65/84)\r \n" ); document.write( "\n" ); document.write( "Therefore, x^r = x^65/84\r \n" ); document.write( "\n" ); document.write( "----> r = 65 / 84 (Using 3)\r \n" ); document.write( "\n" ); document.write( "Hence r = 65 /84 \n" ); document.write( " \n" ); document.write( " |