Graph the equation then find the x intercepts.
Chat with our AI personalities
Graphically might be the simplest answer.
Pros: There are many real life situations in which the relationship between two variables is quadratic rather than linear. So to solve these situations quadratic equations are necessary. There is a simple equation to solve any quadratic equation. Cons: Pupils who are still studying basic mathematics will not be told how to solve quadratic equations in some circumstances - when the solutions lie in the Complex field.
For basic algebra, you can use a calculator with basic functions on it used for arithmetic. If you are trying to solve more complex equations, a scientific calculator will suit you better.
Equations of the form z^4+az^2+a_0 are known as biquadratic equations. They are quartic equations. In general they can be solved by reducing them to a quadratic equation where x=z^2 is the variable. Then you can use the quadratic formula or factor. So plugging in x to the biquadratic giives us x^2+ax+a_0.
11 and 11. In general, you can write an equation (or two equations), and solve with the quadratic formula, to solve this type of questions.