document.write( "Question 1107609: Solve this system by Substitution.\r
\n" ); document.write( "\n" ); document.write( " y = x^2 - 8 and 2x + y = 6\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #722624 by TeachMath(96)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( " Solve this system by Substitution.\r
\n" ); document.write( "\n" ); document.write( " y = x^2 - 8 and 2x + y = 6\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y = x^2 - 8____1
\n" ); document.write( "2x + y = 6_____2
\n" ); document.write( "Substitute value for y into 2 to get: 2x + x^2 - 8 = 6
\n" ); document.write( "x^2 + 2x - 14 = 0
\n" ); document.write( "Solve the quadratic equation by using the quadratic equation formula, completing the square, or graphing.
\n" ); document.write( "
\n" );