document.write( "Question 932460: the sum of a positive number and its square is 19. find the number to the nearest hundredth \n" ); document.write( "

Algebra.Com's Answer #566150 by mananth(16946) $\"\"$ $\"About$

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x+x^2=19\r
\n" ); document.write( "\n" ); document.write( "x^2+x-19=0\r
\n" ); document.write( "\n" ); document.write( "a= 1 , b= 1 , c= -19
\n" ); document.write( "
\n" ); document.write( "b^2-4ac= 1 + 76
\n" ); document.write( "b^2-4ac= 77
\n" ); document.write( " $\"%09sqrt%28%0977%09%29=%098.77%09\"$
\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 + 8.77 )/ 2
\n" ); document.write( "x1= 3.89
\n" ); document.write( " $\"x2=%28-b-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"$
\n" ); document.write( "x2=( -1 -8.77 ) / 2
\n" ); document.write( "x2= -4.89
\n" ); document.write( " \n" ); document.write( "

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