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Algebraic equations have a very vast history. Muhammad ibn Musa al-Khwarizmi was a smart person who lived long ago, in the 9th century. He had a great knowledge of math and stars. That’s the reason, he is known as a mathematician and astronomer.
He is also known as the "father of algebra" because he wrote a book called Kitab al-Jabr that helped people solve math problems in a new way. The word "algebra" actually comes from the name of his book.
For a better understanding of algebraic equations. Firstly, we have to understand the concept of algebra. Algebra is a way or a technique of representing equations by using symbols and letters.
An algebraic equation can be defined as a statement in which we use variables, constants, and coefficients with different mathematical operations.
There are several forms of algebraic equations. A few of them are as follows:
A linear equation is one in which the highest degree of variable is ‘1’
A type of equation in which the highest degree of the variable is ‘2’ is known as a quadratic equation. It is also known as the 2nd-degree equation
.
The equation in which the highest degree of the variable is ‘3’ is known as a cubic equation.
These are the equations in which a variable has one or more exponents.
The equation in which variables come inside the square root.
The equations in which variables appear as the denominator is known as rational equation.
The equation in which variables appear as an exponent is known as the exponential equation.
To solve an equation, it is important to follow the rules and procedures that apply to that specific type of equation. Different types of equations may require different methods to solve, and it is important to choose the appropriate method for each equation to get an accurate solution.
Mathematically,
ax + b = 0
Here,
linear equation graphical representation
Mathematically,
ax^2 + bx +c =0
Here,
Graphical representation of quadratic equation
Mathematically,
ax^3 + bx^2 + cx + d =0
Here,
Graphical representation of Cubic equation
Mathematically,
ax^4 + bx^2 -1 = 0
Here,
Graphical representation of polynomial equation
Mathematically,
Sqrt(x+2) + 3 = 5
Here,
Graphical representation of radical equation
Mathematically,
(ax + b) / (cx + d) = 1
Here,
Graphical representation of rational equation
The equation in which variables appear as an exponent is known as the exponential equation.
Mathematically,
a^x + b = 0
Here,
Graphical representation of exponential equation
Some applications are as follows:
Examples of algebraic equations are as follows:
Example 1:
Find the value of the ‘x’ if (2x + 4) = 0.
Solution:
Step 1: write the equation
2x + 4 = 0
Step 2: subtract the ‘4’ on both sides of the equation
2x + 4 – 4 = 0 – 4
2x = - 4
Step 3: Using the property of algebra
x = -4 / 2
x = -2
Example 2:
Find the value of “x” when (x^2 + 7x + 10) = 0.
Solution:
Step 1: Write the equation
x^2 + 7x + 10 = 0
Step 2: Make polynomial factors of the given equation
x^2 + 5x + 2x + 10 = 0
x (x + 5) + 2 (x + 5) = 0
(x + 2) * (x + 5) = 0
Step 3: Find the value of “x” by using the algebraic properties
x = -2, -5
This article explains algebraic equations, including their concepts, rules, formulas, and applications. It also uses practical examples and scenarios to help you understand the concept of algebraic equations and apply them easily.
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