document.write( "Question 807881: Why doesn't 256 r^2 + 289 = 0 have a real solution? And why can't it be solved using factorization?\r
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Algebra.Com's Answer #486593 by stanbon(75887) ![]() You can put this solution on YOUR website! Why doesn't 256 r^2 + 289 = 0 have a real solution? And why can't it be solved using factorization? \n" ); document.write( "-------- \n" ); document.write( "256*r^2 + 289 = 0 \n" ); document.write( "----- \n" ); document.write( "256*r^2 = -289 \n" ); document.write( "======= \n" ); document.write( "Since the right side is negative, r^2 must be negative. \n" ); document.write( "------- \n" ); document.write( "But there is no Real Number whose square is negative. \n" ); document.write( "====================== \n" ); document.write( "Note: The equation is solvable using complex numbers. \n" ); document.write( "======================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |