Chapter 5: Problem 25
Multiply. \(3 x^{2} y\left(2 x^{3}-x^{2} y^{2}+8 y^{3}\right)\)
Short Answer
Expert verified
The expanded expression is \(6x^5y - 3x^4y^3 + 24x^2y^4\).
Step by step solution
01
Distribute the Monomial
Identify the monomial, which is \(3x^2y\), and distribute it to each term inside the parenthesis \((2x^3 - x^2y^2 + 8y^3)\). This means you will multiply \(3x^2y\) with each term separately.
02
First Term Multiplication
Multiply \(3x^2y\) by \(2x^3\). Use the properties of exponents: \(3 \times 2 = 6\), \(x^{2} \times x^{3} = x^{5}\), and \(y\) stays the same. Thus, the result is \(6x^5y\).
03
Second Term Multiplication
Multiply \(3x^2y\) by \(-x^2y^2\). Combine coefficients and variables: \(3 \times -1 = -3\), \(x^2 \times x^2 = x^4\), and \(y \times y^2 = y^3\). This gives \(-3x^4y^3\).
04
Third Term Multiplication
Multiply \(3x^2y\) by \(8y^3\). Combine terms: \(3 \times 8 = 24\), \(x^2\) remains, and \(y \times y^3 = y^4\). The result is \(24x^2y^4\).
05
Combine and Write Final Expression
Now combine all results from each multiplication: \(6x^5y - 3x^4y^3 + 24x^2y^4\). This is the expanded form of the original expression.
Unlock Step-by-Step Solutions & Ace Your Exams!
-
Full Textbook Solutions
Get detailed explanations and key concepts
-
Unlimited Al creation
Al flashcards, explanations, exams and more...
-
Ads-free access
To over 500 millions flashcards
-
Money-back guarantee
We refund you if you fail your exam.
Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!
Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Distributive Property
The distributive property is a fundamental concept in algebra that allows you to simplify expressions by multiplying a single term (a monomial) with each term inside a parenthesis. It’s like distributing a box of items one by one to different recipients.
The basic format of the distributive property is:
The distributive property not only simplifies expressions but also aids in solving equations by making them easier to handle.
The basic format of the distributive property is:
- \( a(b + c) = ab + ac \)
- Here, \( a \) is distributed to both \( b \) and \( c \).
- \(3x^2y \cdot 2x^3\)
- \(3x^2y \cdot (-x^2y^2)\)
- \(3x^2y \cdot 8y^3\)
The distributive property not only simplifies expressions but also aids in solving equations by making them easier to handle.
Monomials
A monomial is a mathematical expression that consists of only one term. It can be a number, a variable, or the product of numbers and variables. In our exercise, the monomial is \(3x^2y\).
Key components of a monomial include:
Key components of a monomial include:
- Coefficients: The numerical factor of the term, in this case, 3.
- Variables: Symbols that represent unknown values, \(x\) and \(y\).
- Exponents: Powers to which the variables are raised, \(x^2\) and \(y^1\).
- Multiply the coefficients.
- Add the exponents of like variables.
Exponents
Exponents are a way of expressing repeated multiplication of the same number or variable. They have unique rules which simplify calculation, especially in algebra.
Several important rules apply when handling exponents:
Understanding exponents is crucial, as they frequently appear in algebra and beyond, simplifying powers and handling equations with ease.
Several important rules apply when handling exponents:
- Multiplying Like Bases: \(a^m \cdot a^n = a^{m+n}\)
- Raising a Power to a Power: \((a^m)^n = a^{mn}\)
- Product of Powers: When multiplying, add the exponents if the bases are the same.
Understanding exponents is crucial, as they frequently appear in algebra and beyond, simplifying powers and handling equations with ease.