document.write( "Question 695693: Solve the Quadratic equation with the quadratic formula and simplify the complex solution $\"+X%5E2%2B7=0+\"$ and $\"+X%5E2-3X%2B3=0+\"$ . thank you so very much!!!!! \n" ); document.write( "

Algebra.Com's Answer #428630 by mananth(16946) $\"\"$ $\"About$

You can put this solution on YOUR website!
a= 1 b= 0 c= 7
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\n" ); document.write( "b^2-4ac= 0 - 28
\n" ); document.write( "b^2-4ac= -28
\n" ); document.write( " $\"sqrt%28%09-28%09%29\"$ = 2sqrt(7)i
\n" ); document.write( " $\"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"$
\n" ); document.write( " $\"x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29\"$
\n" ); document.write( "x1=( 0 + 2sqrt(7)i )/ 2
\n" ); document.write( "x1= sqrt(7)i
\n" ); document.write( "x2=( 0 -sqrt(7)i ) / 2
\n" ); document.write( "x2= -sqrt(7)i
\n" ); document.write( " \n" ); document.write( "

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