hi,
use sri dhar acharys quadratic equations formula,
ax^2 + bx +c=0.
then,
x= (-b+root over(b^2 - 4ac))/2, (-b - root over (b^2-4ac))/2
here a=1, b=-1, c=4
using the above formula you may solve the equation.
Question : If the sum of the roots of a quadratic equation is 1 and the product of the roots is –20, find the quadratic equation.
Option 1: $x^{2}–x–20=0$
Option 2: $x^{2}+x+20=0$
Option 3: $x^{2}+x–20=0$
Option 4: $x^{2}–x+20=0$
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