Roots of a Quadratic Equation

The roots of a quadratic equation are the values of $x$ that make it equal to zero; graphically they are where the curve crosses the x-axis. For $ax^{2}+bx+c=0$, the sum of roots is $-\frac{b}{a}$ and the product is $\frac{c}{a}$, which helps form equations from given roots.

You meet Roots of a Quadratic Equation in the Quadratic Functions chapter of SPM Additional Mathematics. Knowing the term precisely matters in the exam: questions often hinge on reading a keyword correctly, and because SPM marking is analytic, using the right definition in your working helps secure method marks.

Our teachers make sure a student can not only recite what Roots of a Quadratic Equation means but use it fluently in a full solution.

Because the SPM Add Math paper is bilingual (BM/EN), it helps to know this term in each language: Roots of a Quadratic Equation (EN) · Punca Persamaan Kuadratik (BM) · 二次方程的根 (中文)

Other key terms from the Quadratic Functions chapter you may want to check:

• Quadratic Equation
• Discriminant
• Completing the Square
• Axis of Symmetry
• Vertex Form
• Quadratic Inequality