Equation Calculator is a free online tool that can solve a given equation for a given variable. Protonstalk Equation Calculator is one such handy and helpful tool to compute equations faster and easier.
About Equation Calculator
Inputs
Following are the inputs of the calculator.
- Equation
- Variable for which equation is to be solved
Steps to use
Step 1: Enter the equation and the variable you want to solve the equation for in the respective text field.
Step 2: Click on the “calculate” button to compute the value.
Step 3: The required answer with a graph will be displayed in a new window.
Output
Following are the outputs of the calculator
- Input interpretation
- Results
- Root Plot i.e a graph of the equation showing the roots as intersecting points on x-axis
Equations
An equation is a statement that states the equality of two expressions that are connected by the equals sign “=”. Simply, an equation is written as two operands connected by an operator (“=”). Solving any equation involves determining which values of the variables make the equality true.
Types of Equations
There are a lot of types of equations, some of them are
- Linear Equation
- Quadratic Equation
- Cubic equations
- Polynomial Equation
- Functional Equation
- Parametric Equation and so on.
Example
Question: Solve x2 +4x – 5 = 0
Solution: Given equation, x2 +4x – 5 = 0
Splitting the x term so that we can factorise it.
x2 + 5x – x – 5 = 0
Factorising the equation
x(x + 5) – 1(x+5) = 0
Now we know that either x-1 should be 0 or x+5 should be
(x-1)(x+5) =0
So, x -1 = 0 or x + 5 = 0
=> x = 1 or x = -5
So the solution is x = 1 or -5
More Mathematical Calculators
