Preserving the Product Sum- The Unaltered Outcome Principle

by liuqiyue

A soma dos produtos não altera o resultado

In mathematics, the concept of the product of numbers is fundamental. However, there is a particular property of products that often goes unnoticed: the sum of the products of different pairs of numbers does not change the overall result. This intriguing property is known as the distributive property of multiplication over addition, and it is a cornerstone of algebraic manipulation.

To understand this concept, let’s consider a simple example. Suppose we have three numbers, a, b, and c. The product of a and b, denoted as ab, is the result of multiplying a by b. Similarly, the product of b and c, denoted as bc, is the result of multiplying b by c. Now, if we want to find the sum of these two products, we can write it as ab + bc.

According to the distributive property of multiplication over addition, we can rewrite this sum as (a + b)c. This means that the sum of the products of a and b, and b and c, is equivalent to the product of the sum of a and b, and c. In other words, a soma dos produtos não altera o resultado.

This property holds true for any number of terms. For instance, if we have four numbers, a, b, c, and d, the sum of the products of all possible pairs can be expressed as ab + ac + ad + bc + bd + cd. By applying the distributive property, we can rewrite this sum as (a + b + c + d)(b + c + d). Once again, we see that the sum of the products remains unchanged.

The distributive property of multiplication over addition is not only a fascinating mathematical concept but also a powerful tool for simplifying algebraic expressions. It allows us to break down complex expressions into simpler components, making it easier to solve equations and understand the relationships between different variables.

In conclusion, the statement “a soma dos produtos não altera o resultado” highlights the distributive property of multiplication over addition, a fundamental concept in mathematics. By understanding and applying this property, we can simplify algebraic expressions, solve equations more efficiently, and gain a deeper insight into the nature of numbers and their interactions.

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