document.write( "Question 285571: solve f(x)= 2x squared + 2x-4 \n" ); document.write( "

Algebra.Com's Answer #207004 by Deina(147) $\"\"$ $\"About$

You can put this solution on YOUR website!
solve $\"+f%28x%29=+2x%5E2+%2B+2x+-4+\"$
\n" ); document.write( "since this is in the form of $\"+ax%5E2+%2B+bx+%2B+c+=+0+\"$ , I would simply solve it using the quadratic formula:
\n" ); document.write( " $\"+x%5B1%2C+2%5D+=+%28b%2B-sqrt%28+b%5E2-4ac+%29%29%2F2a+\"$
\r
\n" ); document.write( "\n" ); document.write( "using your data in () it would be:
\n" ); document.write( " $\"+x%5B1%2C+2%5D+=+%28%282%29%2B-sqrt%28+%282%29%5E2-4%282%29%28-4%29+%29%29%2F2%282%29+\"$

\n" ); document.write( "solving that for $\"+x%5B1%5D+\"$ and $\"+x%5B2%5D\"$
\n" ); document.write( "will give you your 2 answers and bob's your uncle! \n" ); document.write( "

\n" );