document.write( "Question 431664: I don't know how to type this so forgive me if its wrong
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document.write( "there is a small 3 and then a square root sign and inside that is -125
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document.write( "need help \n" );
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Algebra.Com's Answer #299486 by Edwin McCravy(20060)![]() ![]() You can put this solution on YOUR website! I don't know how to type this so forgive me if its wrong \n" ); document.write( "there is a small 3 and then a square root sign and inside that is -125 \n" ); document.write( "need help \n" ); document.write( " \r\n" ); document.write( "That's not called \"square root\". It's called \"CUBE root\":\r\n" ); document.write( " _____ \r\n" ); document.write( "∛-125\r\n" ); document.write( "\r\n" ); document.write( "You have to think of a number that when used three times as\r\n" ); document.write( "a factor, that is, CUBED, the product is -125.\r\n" ); document.write( "\r\n" ); document.write( "By trial and error:\r\n" ); document.write( "\r\n" ); document.write( "(-1)³ = (-1)(-1)(-1) = (+1)(-1) = -1. That's not it. \r\n" ); document.write( "(-2)³ = (-2)(-2)(-2) = (+4)(-2) = -8. That's not it. \r\n" ); document.write( "(-3)³ = (-3)(-3)(-3) = (+9)(-3) = -27. That's not it. \r\n" ); document.write( "(-4)³ = (-4)(-4)(-4) = (+16)(-4) = -64. That's not it. \r\n" ); document.write( "(-5)³ = (-5)(-5)(-5) = (+25)(-5) = -125. That's it!\r\n" ); document.write( "\r\n" ); document.write( "So the answer is \r\n" ); document.write( "\r\n" ); document.write( " _____ \r\n" ); document.write( "∛-125 = -5\r\n" ); document.write( "\r\n" ); document.write( "Edwin\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |