document.write( "Question 1097367: Solve for x in this equation: x^2-5=8-2x^2 \n" ); document.write( "
Algebra.Com's Answer #711763 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! x^2-5=8-2x^2 \n" ); document.write( "3x^2-13=0 \n" ); document.write( "3x^2=13 \n" ); document.write( "x^2=13/3 \n" ); document.write( "x=+/-sqrt(39)/3 \n" ); document.write( "Numerically 2.08 \n" ); document.write( "check \n" ); document.write( "2.08^2-5=-0.67 \n" ); document.write( "8-2(2.08^2)=-0.65. These are equivalent given rounding. sqrt(39)/3 is the exact answer \n" ); document.write( " |