document.write( "Question 845134: How do you solve 2x^2-8=0 using the quadratic formula? \n" ); document.write( "

Algebra.Com's Answer #509150 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+2x%5E2+-+8+=+0+\"$
\n" ); document.write( " $\"+x+=+%28+-b+%2B-+sqrt%28+b%5E2+-+4%2Aa%2Ac+%29%29+%2F+%282%2Aa%29+\"$
\n" ); document.write( " $\"+a+=+2+\"$
\n" ); document.write( " $\"+b+=+0+\"$
\n" ); document.write( " $\"+c+=+-8+\"$
\n" ); document.write( " $\"+x+=+%28+-0+%2B-+sqrt%28+0%5E2+-+4%2A2%2A%28-8%29+%29%29+%2F+%282%2A2%29+\"$
\n" ); document.write( " $\"+x+=+%28+-0+%2B-+sqrt%28+64+%29%29+%2F+4+\"$
\n" ); document.write( " $\"+x+=+8%2F4+\"$
\n" ); document.write( " $\"+x+=+2+\"$
\n" ); document.write( "and, also:
\n" ); document.write( " $\"+x+=+-8%2F4+\"$
\n" ); document.write( " $\"+x+=+-2+\"$
\n" ); document.write( "Here's a plot showing roots $\"+x+=+2+\"$ , and $\"+x+=+-2+\"$
\n" ); document.write( " $\"+graph%28+400%2C+400%2C+-5%2C+5%2C+-10%2C+5%2C+2x%5E2+-+8+%29+\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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