document.write( "Question 103577This question is from textbook algebra
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document.write( ": Solve by completing the square.
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document.write( " 4x^2 + 2x – 3 = 0
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Algebra.Com's Answer #75303 by edjones(8007)![]() ![]() You can put this solution on YOUR website! 4x^2 + 2x – 3 = 0 \n" ); document.write( "x^2+.5x-.75=0 divide the equation by 4 to make the coeficient of the 1st term 1. \n" ); document.write( "x^2+.5x =.75 \n" ); document.write( "x^2+.5x+.0625=.75+.0625 Divide the 2nd term by 2 and square the result and make it the new 3rd term and add it to the right side. Now we have a perfect square on the left. \n" ); document.write( "(x+.25)^2=.8125 factor the left and combine on the right. \n" ); document.write( "x+.25=+-sqrt(.8125) \n" ); document.write( "x=-.25+-sqrt(.8125) \n" ); document.write( "x=-1.1514, x=0.6514 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |