document.write( "Question 136609: Solve the following equation for X by using the quadratic formula.\r
\n" ); document.write( "\n" ); document.write( "4x^2+2x-4=0\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #100046 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
The quadratic formula gives the solutions to any equation of the form \"ax%5E2%2Bby%2Bc=0\". Take the coefficient values from your equation and put them into the formula:\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Then do the arithmetic. Generally, when you are just solving an equation that is not part of a word problem involving measurements, you leave the answer in radical form (unless the radical turns out to be a perfect square). Just remember to take the square root of any perfect square factors of the number under the radical. For example, if you had \"sqrt%2850%29\", that is the same as \"sqrt%2825%2A2%29=sqrt%2825%29sqrt%282%29=5sqrt%282%29\".
\n" ); document.write( "
\n" );