document.write( "Question 1039767: What steps do you use to simplify radicals? Give an example step by step. \n" ); document.write( "
Algebra.Com's Answer #654527 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! Simplifying a radical involves finding a factor that is a perfect square and making the radical two radicals, one of which is a perfect square. \n" ); document.write( "Sqrt(75)=sqrt(25)*sqrt(3) \n" ); document.write( "That is 5* sqrt(3) \n" ); document.write( "Yes, I could write sqrt(15)(sqrt(5), but neither of those is a perfect square. \n" ); document.write( "Try to divide the original radical by perfect squares, beginning with 4, then 9, then 16, 25, 36,... \n" ); document.write( "Square root of 98= sqrt (49)*sqrt(2) \n" ); document.write( "That is 7 sqrt(2). \n" ); document.write( "------------------- \n" ); document.write( "To rationalize a radical, multiply the denominator's radical by itself and therefore do the same to the numerator. \n" ); document.write( "5/ sqrt(2)= 5 * sqrt(2)/sqrt(2)*sqrt(2). That makes the denominator an integer but makes the numerator a radical. That's OK. The result is 5 sqrt(2)/2 \n" ); document.write( " |