document.write( "Question 1045071: How do you show all workings rather than substitution to
\n" ); document.write( "calculate x where the hypotenuse is x+8 and the other sides
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Algebra.Com's Answer #660469 by Edwin McCravy(20055) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Use FOIL:\r\n" );
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document.write( "Get 0 on the left by subtracting the whole left \r\n" );
document.write( "side from the right side:\r\n" );
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document.write( "Factor the right side\r\n" );
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document.write( "Use the zero-factor property:\r\n" );
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document.write( "x-5 = 0;   x+3=0\r\n" );
document.write( "  x = 5;     x=-3\r\n" );
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document.write( "x is one of the sides, so it can't be negative,\r\n" );
document.write( "so we discard the -3 and the answer is\r\n" );
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document.write( "x = 5\r\n" );
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document.write( "Edwin

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