MathematicsEasy129×since 2002Q5139If α\alphaα and β\betaβ are the roots of the equation 2x(2x + 1) = 1, then β\betaβ is equal to :A−2α(α+1)- 2\alpha \left( {\alpha + 1} \right)−2α(α+1)B2α(α+1)2\alpha \left( {\alpha + 1} \right)2α(α+1)C2α22{\alpha ^2}2α2D2α(α−1)2\alpha \left( {\alpha - 1} \right)2α(α−1)Check answerSkip