document.write( "Question 269735: How do I find a real or imaginary solution to w^2 = -225? \n" ); document.write( "
Algebra.Com's Answer #197647 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! How do I find a real or imaginary solution to w^2 = -225? \n" ); document.write( ": \n" ); document.write( "Use i, the square root of -1 \n" ); document.write( ": \n" ); document.write( "w^2 = -225? \n" ); document.write( "w = +/- \n" ); document.write( "w = +15i \n" ); document.write( "and \n" ); document.write( "w = -15i \n" ); document.write( ": \n" ); document.write( "You can prove this to yourself on a good a calc: \n" ); document.write( "enter (-15i)^2 = -225 \n" ); document.write( "enter (15i)^2 = -225 \n" ); document.write( " |