document.write( "Question 1121887: use the quadratic formula to solve the equation to the exact value or round to two decimal places. x2+x=5 \n" ); document.write( "

Algebra.Com's Answer #737886 by rothauserc(4718) $\"\"$ $\"About$

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x^2 +x -5 = 0
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\n" ); document.write( "the standard form of a quadratic equation is
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\n" ); document.write( "ax^2 +bx +c = 0
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\n" ); document.write( "for this problem a=1, b=1, c=-5
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\n" ); document.write( "the quadratic formula is
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\n" ); document.write( "x = (-b + or - sqrt(b^2-4ac))/2a
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\n" ); document.write( "x = (-1 +sqrt(1^2 -4(1)(-5))/2(1) = 1.7912 approximately 1.79
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\n" ); document.write( "x = (-1 -sqrt(1^2 -4(1)(-5))/2(1) = -2.7913 approximately -2.79
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