document.write( "Question 775550: Use the quadratic formula to solve the following equation. x^2 = –x + 7 \n" ); document.write( "

Algebra.Com's Answer #472991 by mananth(16946) $\"\"$ $\"About$

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x^2=-x+7\r
\n" ); document.write( "\n" ); document.write( "x^2+x-7=0\r
\n" ); document.write( "\n" ); document.write( "Find the roots of the equation by quadratic formula
\n" ); document.write( " iiiii
\n" ); document.write( "a= 1 , b= 1 , c= -7
\n" ); document.write( "
\n" ); document.write( "b^2-4ac= 1 + 28
\n" ); document.write( "b^2-4ac= 29
\n" ); document.write( " $\"%09sqrt%28%0929%09%29=%095.39%09\"$
\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=( -1 + 5.39 )/ 2
\n" ); document.write( "x1= 2.19
\n" ); document.write( " $\"x2=%28-b-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"$
\n" ); document.write( "x2=( -1 -5.39 ) / 2
\n" ); document.write( "x2= -3.19 \r
\n" ); document.write( "\n" ); document.write( "((2.19,-3.19) \n" ); document.write( "

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