This type of exercise can be solved using the function : inequality_solver
An equation is an equality that involves one or more variables, solving an equation in a set is to find the value or values of the variables in that set that verify the equation, these are the solutions of the equation. The variables are often referred to as the unknown, when the equation has only one unknown, it is often referred to as x.
When we have to solve several equations, with several variables, we speak of a system of equations.
There are methods and formulas for solving certain types of equations such as first degree equations (linear equation), second degree equations (quadratic equation), or product equations.
Solving an equation with one unknown x in R, it is to determine the set of real numbers x verifying the said equation. This set is called the set of solutions of the equation.
A product of two factors is zero if and only if one of the factors is zero.
We call the discriminant of the trinomial `a*x^2+b*x+c`, with a not zero, the real `Delta=b^2-4*a*c`.