document.write( "Question 89118: Solve by completing the square.
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document.write( " 2x^2 + 8x + 5 = 0\r
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document.write( "If anyone could offer assistance on how to complete this problem step-by-step, it would be greatly appreciated. \r
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document.write( "Thank you in advance for your time.
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Algebra.Com's Answer #64778 by tutor_paul(519)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "First, put the x^2 and x terms alone on one side of the equation: \n" ); document.write( " \n" ); document.write( "You need to be sure the coefficient of x^2 is 1, so divide all terms by 2: \n" ); document.write( " \n" ); document.write( "Divide the coefficient of x by 2 and square the result. Add this to both sides of the equation in order to maintain the equality. \n" ); document.write( " \n" ); document.write( "Simplify right hand side: \n" ); document.write( " \n" ); document.write( "Now, the left hand side can be written as a perfect square: \n" ); document.write( " \n" ); document.write( "Take the square root of both sides: \n" ); document.write( "x+2=+-sqrt(3/2) \n" ); document.write( "Solve for x: \n" ); document.write( " \n" ); document.write( "You can plug this into a calculator if you need a numerical answer, but this is usually good enough. \n" ); document.write( "Good Luck, \n" ); document.write( "tutor_paul@yahoo.com \n" ); document.write( " \n" ); document.write( " |