Solve the following quadratic equations by factorization:
x²-x-a(a+1)=0
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take the value of a =1, b= 1, c= a(a+1)
now using the formula of discriminant find it
D= b^2-4ac
then place it in the formula,
(-b+√D)/2a and (-b-√D)/2a
therefore you will get the two roots of the given equation.
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