4x^2 – 5x – 12 = 0 : Solving Quadratic Equation – Step-by-Step Guide

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Welcome to this article, where we can delve into the world of quadratic equations. Specifically, we will awareness of solving the equation 4x^2 – 5x – 12 = 0. Quadratic equations are a crucial part of algebra and preserve large importance in diverse fields of arithmetic and technological knowledge. 

Also Read: x + x + x + x Equals 4x

Characteristics of Quadratic Equations

Before dive in the solving of this quadratic equation, it is important to know about its characteristics and features. Quadratic equations show off positive characteristics which are crucial to their examine and solution. These encompass having a parabolic form, a vertex that represents the minimal or most point, and symmetrical forms. Understanding these characteristics enables us benefit insights into their conduct and realistic forms.

Method of Solution 4x ^ 2 – 5x – 12 = 0

The 4x^2 – 5x – 12 = 0may be solved using numerous techniques, each with its specific technique. The maximum commonplace techniques are factorization, finishing the rectangular, and the quadratic formula. 

Factorization includes rewriting the quadratic as a manufactured from  binomials while finishing the rectangular remodeling the equation into an excellent square. However, the maximum universally applicable technique, specially for equations which are hard to factorize, is the quadratic components. ​​In our case, with 4x ^ 2 – 5x – 12 = 0, the coefficients are a=4, b=−5, and c=−12.

Significance and Applications

Quadratic equations are pivotal in diverse medical and engineering disciplines. The roots of those equations can constitute real-world portions like the time of flight or most height in projectile movement, greatest solutions in economics, or factors of equilibrium in chemical reactions. Here we know that this kind of quadratic equations has diverse uses. Understanding the nature of these answers, whether real, complicated, or repeated, affords insights into the conduct of the device being studied. 

Examples of Solving 4x^2 – 5x – 12 = 0

To solidify our knowledge, permit’s paintings through more than one examples demonstrating the way to clear up the quadratic equation 4x^2 – 5x – 12 = 0 the usage of each the factoring approach and the quadratic system.

Example 1: Factoring Method

Let’s factorize 4x^2 – 5x – 12 = 0:

(2x + 3)(2x – 4) = 0

By equating every factor to zero, we get

2x + 3 = 0 –> x = -3/2

2x – 4 = 0 –> x = 2

Therefore, the solutions to the equation are x = -3/2 and x = 2.

Example 2: Quadratic Formula

Using the quadratic components, we can solve 4x^2 – 5x – 12 = 0

x = (-(-5) ± √((-5)^2 – 4 * 4 * (-12))) / (2 * 4)

After performing the calculations, we discover the answers to be x = -3/2 and x = 2.


By using the factor method to solve this mathematical equation, you find the values of x that are fits right to this equation. It means the values of “x” calculated are accurate. This is reasons why such equations are used in real-world applications that include engineering, projectile motion, physics, etc. Once you understand the quadratic equation, you can solve the mathematical terms and other equations, and understand its process 

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