document.write( "Question 144827: In this question I need to use the “discriminant” to determine the number of solutions of the quadratic equation, and whether the solutions are real or complex. I need help please!! \r
\n" ); document.write( "\n" ); document.write( "2. 2x2 + 5x + 5 = 0
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #105518 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "\"D=b%5E2-4ac\" Start with the discriminant formula\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "From \"2x%5E2%2B5x%2B5\" we can see that \"a=2\", \"b=5\", and \"c=5\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"D=%285%29%5E2-4%282%29%285%29\" Plug in \"a=2\", \"b=5\", and \"c=5\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"D=25-4%282%29%285%29\" Square \"5\" to get \"25\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"D=25-40\" Multiply \"4%282%29%285%29\" to get \"%288%29%285%29=40\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"D=-15\" Subtract \"40\" from \"25\" to get \"-15\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Since the discriminant is less than zero, this means that there are two complex solutions\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );