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Learn about using the discriminant for your A level maths exam This revision note covers what the discriminant is and

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If the discriminant is zero there is one real solution This concept explores the discriminant and how to use the

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What type of roots the equation has can be shown by the discriminant The discriminant for a quadratic equation a x 2 bx c 0

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If the coefficients are real numbers and the discriminant is negative then there are two real roots and two complex conjugate roots

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Though we cannot find the roots by just using the discriminant we can determine the nature of the roots as follows If D 0 the

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Learn how to use the discriminant to find real roots of a quadratic explained clearly for A level Maths students by

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What is a discriminant A discriminant is a value calculated from a quadratic equation It use it to discriminate between the roots or

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These roots can be categorized into different types real and complex The discriminant is a part of the quadratic formula that tells us

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For polynomial equations we define a term called Discriminant that helps in finding the roots of the equations