document.write( "Question 63297: I seem to be stuck with this problem:
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document.write( "2x(squared)-18=0 (I Can't put the squared signed next to the 2x)\r
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document.write( "I am not sure on how to factor this:
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document.write( "I tried x(2x-18)=0 Is that correct? \n" );
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Algebra.Com's Answer #44060 by jai_kos(139)![]() ![]() ![]() You can put this solution on YOUR website! Given 2x^2 - 18 = 0\r \n" ); document.write( "\n" ); document.write( "Add 18 on both sides, we get\r \n" ); document.write( "\n" ); document.write( "2x^2 -18 +18 = 0 +18\r \n" ); document.write( "\n" ); document.write( "2x^2 = 18\r \n" ); document.write( "\n" ); document.write( "Divide by 2, we get\r \n" ); document.write( "\n" ); document.write( "2x^2 / 2 = 18 /2\r \n" ); document.write( "\n" ); document.write( "x^2 = 9\r \n" ); document.write( "\n" ); document.write( "Take the square root,\r \n" ); document.write( "\n" ); document.write( "we get sqrt(x^2) = sqrt(9)\r \n" ); document.write( "\n" ); document.write( "x = + 3 or -3\r \n" ); document.write( "\n" ); document.write( "Whenever we take the square root, we get two values one with positive sign and one with negative sign. \n" ); document.write( " |