Nonlinear Equations with Four Variables: Solving for All Solutions

In summary, a system of nonlinear equations is a set of two or more equations that involve variables with exponents or other nonlinear terms and require advanced techniques to solve. It differs from a system of linear equations, which can be solved using basic algebraic methods. The solutions to a system of nonlinear equations are the values that make all equations true and can be found through graphing or algebraic techniques. It can have more than one solution and has many real-world applications in various fields.
  • #1
dirk_mec1
761
13

Homework Statement


Find all solutions of:

a + c = 5
b + d + ac = 5
ad+ bc = 5
bd = -6

Homework Equations

The Attempt at a Solution


I tried subsitution and end up with a cubic equations. I am pretty sure it can be done easier.
 
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  • #2
Why do you think it can be done more simply? I got a 6th order equation. Mathematica came up with 6 solutions, two real and 4 complex. Try showing us your work.
 
  • #3
Because this is written in a high school book. So there must be something we are overlooking.
 

Related to Nonlinear Equations with Four Variables: Solving for All Solutions

What is a system of nonlinear equations?

A system of nonlinear equations is a set of two or more equations that contain variables with exponents or other nonlinear terms. These equations cannot be solved using basic algebraic methods and require more advanced techniques, such as substitution or elimination, to find a solution.

How is a system of nonlinear equations different from a system of linear equations?

A system of linear equations contains only variables with a power of one, and the equations can be solved using basic algebraic methods. Nonlinear equations involve variables with exponents or other nonlinear terms and require more advanced techniques to solve.

What are the solutions to a system of nonlinear equations?

The solutions to a system of nonlinear equations are the values of the variables that make all of the equations in the system true. These solutions can be found by graphing the equations and finding their point of intersection, or by using algebraic techniques such as substitution or elimination.

Can a system of nonlinear equations have more than one solution?

Yes, a system of nonlinear equations can have more than one solution. This can occur when the equations intersect at multiple points, or when there are multiple sets of values that make all of the equations true.

What are some real-world applications of systems of nonlinear equations?

Systems of nonlinear equations can be used to model and solve a variety of real-world problems, such as predicting the growth of a population, optimizing production in a manufacturing plant, or determining the most efficient route for a delivery truck. They are also used in fields such as economics, physics, and engineering to analyze complex systems and make predictions.

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