document.write( "Question 889831: 1.Solve the equation, if possible. Write irrational numbers in simplest radical form. Describe the strategy you used to get your solution and tell why you chose that strategy. x^2-4=0 PLEASE SHOW WORK THANK YOU SO MUCH. :)
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Algebra.Com's Answer #538478 by parthdesai27(11) You can put this solution on YOUR website! Given is x^2 - 4 = 0\r \n" ); document.write( "\n" ); document.write( " -> x^2 - 2^2 = 0 ( 4 = 2^2 )\r \n" ); document.write( "\n" ); document.write( " -> (x-2).(x+2) = 0 ( x^2 - a^2 = (x-a).(x+a) )\r \n" ); document.write( "\n" ); document.write( " -> x-2 = 0 or x+2 = 0\r \n" ); document.write( "\n" ); document.write( " -> x = 2 or x = -2 \n" ); document.write( " |