document.write( "Question 1086133: The number x satisfies 5x^2 + 4 = 3x + 9. Find the value of (10x - 3)^2. \n" ); document.write( "

Algebra.Com's Answer #700320 by ikleyn(52786) $\"\"$ $\"About$

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\n" ); document.write( "YOU DO NOT NEED solve quadratic equation to get the answer.\r
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document.write( " =   ====>   = 5  ====>  (multiply by 20 both sides)  ====>   = 100  ====>   = 100 + 9\r\n" );
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document.write( "               ====>   = 109.          Solved.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Lessons to learn from this solution:\r
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\n" ); document.write( "\n" ); document.write( "    1. YOU DO NOT NEED solve quadratic equation to get the answer.\r
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\n" ); document.write( "\n" ); document.write( "    2. This task is ideal for the interview/olimpiad when an employer/jury wants to check whether you are able to think
\n" ); document.write( "         and to find non-standard, simplest, shortest, most straight-forward and most economical way to solve the problem.\r
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\n" ); document.write( "\n" ); document.write( "         If at the interview/olimpiad you will start solving quadratic equation, \r
\n" ); document.write( "\n" ); document.write( "         you will be evaluated in this way: knows and tends to use standard approaches, but is not able to find original/simplest way to solve.\r
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\n" ); document.write( "\n" ); document.write( "         Diagnosis: IS NOT ABLE TO SEE THROUGH a WALL. \r
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\n" ); document.write( "\n" ); document.write( "                      CONCLUSION: is not a researcher // Has NO a researcher spirit.\r
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\n" ); document.write( "\n" ); document.write( "                              Explanation: A (true) researcher is a person who is able to see through a wall.\r
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