Chapter 9 Equations and Inequalities

A quadratic function is a function of the form f(x) = 〖ax〗^2 + bx + c, where a, b and c are real numbers with a ≠ 0. A quadratic function is a function of the form f(x) = 〖ax〗^2 + bx + c, where a, b and c are real numbers with a ≠ 0. In this section, you learn about Solving Quadratic Equations, quadratic equations, Solving Quadratic Equations by Factorising, solve quadratic equations.

A quadratic function is a function of the form f(x) = 〖ax〗^2 + bx + c, where a, b and c are real numbers with a ≠ 0. In this section, you learn about Solving Quadratic Equations, quadratic equations, solve quadratic formula.

x^2+bx+c can be written in the form 〖(x+b/2)〗^2-(b/2)^2+c. This is called completing the square. In this section, you learn about, Completing the square, solve quadratic.

Simultaneous equations are two or more algebraic equations that share common variables and are solved at the same time. In this section, you learn about Solving Simple Simultaneous Equations, simultaneous equations, How to solve simultaneous equations by using the substitution method, substitution method, Solving problems simultaneously.

Simultaneous equations are two or more algebraic equations that share common variables and are solved at the same time. In this section, you learn about Linear Simultaneous Equations, solving by elimination, solving by substitution.

Simultaneous equations are two or more algebraic equations that share common variables and are solved at the same time. When solving simultaneous equations with a linear and quadratic equation, there will usually be two pairs of solutions. In this section, you learn about Solve Linear and Quadratic Simultaneous Equations, one linear and one quadratic equations.

Linear inequalities are the expressions where any two values are compared by the inequality symbols such as, ‘<’, ‘>’, ‘≤’ or ‘≥’. In this section you learn about Solve Linear Inequalities, basic inequality, brackets inequality, inequality solve, inequality.