Question 19418
{{{x^2-7x+2=0}}}
Compare with (ax^2+bx+c)=0
a=1,b=-7,c=2
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{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{x=(7 +- sqrt(49 - 4(1)(2)))/2}}}
{{{x=(7 +- sqrt(49-8))/2}}}
{{{x=(7 +- sqrt(41))/2}}}
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-Prabhat