Understanding Numerical Coefficients

Oct 13, 2025 by windailys.com 106 views

Understanding Numerical Coefficients

In algebra, a numerical coefficient is a number that is multiplied by a variable or a group of variables. It is an essential concept in understanding and simplifying algebraic expressions. In this article, we will explore the numerical coefficient of the term 12x²y in the given expression 12x²y-5xy².

Identifying the Numerical Coefficient

To identify the numerical coefficient of 12x²y, we need to look at the term itself. The numerical coefficient is the number that is multiplied by the variables. In this case, the numerical coefficient is 12.

Understanding the Expression 12x²y-5xy²

The given expression is 12x²y-5xy². To find the numerical coefficient of 12x²y, we need to understand the structure of the expression. The expression consists of two terms: 12x²y and -5xy². The numerical coefficient of 12x²y is 12, and the numerical coefficient of -5xy² is -5.

Comparing the Numerical Coefficients

Now that we have identified the numerical coefficients of both terms, we can compare them. The numerical coefficient of 12x²y is 12, and the numerical coefficient of -5xy² is -5. However, the question asks for the numerical coefficient of 12x²y in the expression 12x²y-5xy².

The Correct Answer

The correct answer is the numerical coefficient of 12x²y, which is 12. Therefore, the correct answer is option c) -12 is incorrect, the correct answer is option b) 12.

Conclusion

In conclusion, the numerical coefficient of 12x²y in the expression 12x²y-5xy² is 12. This is because the numerical coefficient is the number that is multiplied by the variables, and in this case, the numerical coefficient of 12x²y is 12.

Frequently Asked Questions

What is a numerical coefficient? A numerical coefficient is a number that is multiplied by a variable or a group of variables.
How do I identify the numerical coefficient of a term? To identify the numerical coefficient, look at the term itself and find the number that is multiplied by the variables.
What is the numerical coefficient of 12x²y in the expression 12x²y-5xy²? The numerical coefficient of 12x²y in the expression 12x²y-5xy² is 12.

Final Answer

The final answer is option b) 12.

Understanding Numerical Coefficients

Q&A: Numerical Coefficients

Q: What is a numerical coefficient?

A: A numerical coefficient is a number that is multiplied by a variable or a group of variables.

Q: How do I identify the numerical coefficient of a term?

A: To identify the numerical coefficient, look at the term itself and find the number that is multiplied by the variables.

Q: What is the difference between a numerical coefficient and a variable?

A: A numerical coefficient is a number that is multiplied by a variable or a group of variables, while a variable is a letter or symbol that represents a value.

Q: Can a numerical coefficient be a fraction or a decimal?

A: Yes, a numerical coefficient can be a fraction or a decimal.

Q: How do I simplify an algebraic expression with numerical coefficients?

A: To simplify an algebraic expression with numerical coefficients, combine like terms by adding or subtracting the numerical coefficients.

Q: What is the numerical coefficient of 12x²y in the expression 12x²y-5xy²?

A: The numerical coefficient of 12x²y in the expression 12x²y-5xy² is 12.

Q: Can a numerical coefficient be negative?

A: Yes, a numerical coefficient can be negative.

Q: How do I determine the sign of a numerical coefficient?

A: The sign of a numerical coefficient is determined by the sign of the number that is multiplied by the variables.

Q: What is the numerical coefficient of -5xy² in the expression 12x²y-5xy²?

A: The numerical coefficient of -5xy² in the expression 12x²y-5xy² is -5.

Q: Can a numerical coefficient be a complex number?

A: Yes, a numerical coefficient can be a complex number.

Q: How do I simplify an algebraic expression with complex numerical coefficients?

A: To simplify an algebraic expression with complex numerical coefficients, combine like terms by adding or subtracting the numerical coefficients.

Conclusion

In conclusion, numerical coefficients are an essential concept in algebra that help us understand and simplify algebraic expressions. By identifying the numerical coefficient of a term, we can simplify expressions and solve equations. We hope this Q&A article has helped you understand numerical coefficients better.

Final Answer

The final answer is option b) 12.