No. 1 In DSE Mathematics, you are often asked to solve quadratic equations and use their roots. But what about the reverse operation — constructing a quadratic equat . . . . .
No. 2 Beyond simply solving quadratic equations, DSE Paper 1 Section B and Paper 2 MC often require you to determine the signs of the roots (both positive, both negat . . . . .
No. 3 Beyond simply solving quadratic equations, DSE Paper 1 Section B and Paper 2 MC often require you to determine the signs of the roots (both positive, both negat . . . . .
No. 4 Word problems involving quadratic equations are a staple of DSE Paper 1 Section A(2) and B. This article focuses on three classic types: area problems, number a . . . . .
No. 5 Word problems involving quadratic equations are a staple of DSE Paper 1 Section A(2) and B. This article focuses on three classic types: area problems, number a . . . . .
No. 6 The discriminant is a powerful tool that tells you the nature of the roots of a quadratic equation without actually solving it. There are three cases: (two d . . . . .
No. 7 The discriminant is a powerful tool that tells you the nature of the roots of a quadratic equation without actually solving it. There are three cases: (two d . . . . .
No. 8 For a quadratic equation with roots and , the sum of roots is and the product of roots is . These are known as Vieta's formulas. They allow you to evaluate ex . . . . .
No. 9 For a quadratic equation with roots and , the sum of roots is and the product of roots is . These are known as Vieta's formulas. They allow you to evaluate ex . . . . .