Explanation And Solution For "3 X 2 2X 1 8"

Example 18 Find discriminant of 3x2 2x + 1/3 = 0 and from teachoo.com

Introduction

As a professional teacher, it is my duty to help my students with their mathematical problems. In this article, I will explain and provide a solution for the expression "3 x 2 2x 1 8".

Understanding the Expression

The expression "3 x 2 2x 1 8" may look confusing at first glance. However, it is just a combination of mathematical operations. The expression consists of three terms, namely "3x2", "2x", and "18". The "x" in the expression represents multiplication.

Solution

To solve the expression "3 x 2 2x 1 8", we need to follow the order of operations, which is also known as PEMDAS. PEMDAS stands for Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction.

Step 1: Parentheses

There are no parentheses in the expression, so we move on to the next step.

Step 2: Exponents

There are no exponents in the expression, so we move on to the next step.

Step 3: Multiplication and Division

We need to perform multiplication first. The expression "3x2" means 3 multiplied by 2, which equals 6. The expression "2x" means 2 multiplied by x, which is 2x. Therefore, the expression becomes "6+2x 1 8".

Step 4: Addition and Subtraction

We need to perform addition and subtraction last. The expression "6+2x" means 6 added to 2x. Therefore, the final expression is "6+2x+18".

Conclusion

In conclusion, the expression "3 x 2 2x 1 8" can be solved using the order of operations. It is important to follow the order of operations to get the correct answer. As a teacher, I always encourage my students to practice solving mathematical problems to improve their skills.