Stage 11 · Quadratic Equations

11.5 The Relationship Between Roots and Coefficients (Vieta's Formulas)

Read off the sum and product of the two roots without solving, then work backwards to build an equation from its roots and evaluate symmetric expressions.

4 knowledge points

Knowledge point pages

11.5.1 The Pattern in the Sum and Product of the Roots 11.5.2 Applying Vieta's Formulas Directly 11.5.3 Evaluating Symmetric Expressions in the Roots 11.5.4 Building an Equation from Its Roots

eastmath.com · 11.5 The Relationship Between Roots and Coefficients (Vieta's Formulas)