document.write( "Question 38208: Express the following expression in simplest radical form. All variables represent positive real numbers.\r
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document.write( "SQRT of 27(a^2)b / SQRT of 7(a^3)(b^3) \n" );
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Algebra.Com's Answer #23667 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! From \n" ); document.write( "sqrt27(a^2)b / sqrt7(a^3)(b^3) \n" ); document.write( "we can make it all one root and then cancel as possible, thus we get \n" ); document.write( "sqrt[27(a^2)b / 7(a^3)(b^3)] = \n" ); document.write( "sqrt[27 / 7ab^2] \n" ); document.write( "From here, we need to rationalize the denominator by multiplying top and bottom by sqrt(7a)/sqrt(7a)...so we have \n" ); document.write( "sqrt[27 / 7ab^2] * sqrt(7a)/sqrt(7a) = \n" ); document.write( "sqrt[189a / 49(a^2)(b^2)] \n" ); document.write( "Now 49(a^2)(b^2) is a perfect square so we can remove it from the root...our final answer is \n" ); document.write( "sqrt(189a) / 7ab \n" ); document.write( " |