document.write( "Question 523978: how would you go about solving x^2-6x+9=100 useing square roots? \n" ); document.write( "
Algebra.Com's Answer #347501 by Edwin McCravy(20055)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( " x² - 6x + 9 = 100\r\n" ); document.write( "\r\n" ); document.write( "Factor the left side:\r\n" ); document.write( "\r\n" ); document.write( " (x-3)(x-3) = 100\r\n" ); document.write( "\r\n" ); document.write( "Since the two factors are the same we can write the factor just\r\n" ); document.write( "once with a 2 exponent, that is, as a square of a binomial:\r\n" ); document.write( "\r\n" ); document.write( " (x-3)² = 100\r\n" ); document.write( "\r\n" ); document.write( "Now we use the principle of square roots. \r\n" ); document.write( "\r\n" ); document.write( " x-3 = ±\n" ); document.write( " |