Chapter 0: Problem 59
Perform the indicated operations. $$(3 p+5)^{2}$$
Short Answer
Expert verified
\((3p + 5)^2 = 9p^2 + 30p + 25\).
Step by step solution
01
Understand the Expression
The exercise requires you to expand the expression \((3p + 5)^2\). This is a binomial squared expression which can be expanded using the binomial formula \((a+b)^2 = a^2 + 2ab + b^2\), where \(a = 3p\) and \(b = 5\).
02
Apply the Binomial Formula
Substitute \(a = 3p\) and \(b = 5\) into the binomial formula. The formula becomes: \((3p)^2 + 2(3p)(5) + 5^2\).
03
Calculate Each Term
- Compute \((3p)^2 = 9p^2\).- Compute \(2(3p)(5) = 30p\).- Compute \(5^2 = 25\).
04
Combine All Terms
Combine the calculated terms: \(9p^2 + 30p + 25\). This is the expanded form of the given expression.
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Understanding the Binomial Theorem
The binomial theorem provides a method for expanding expressions like \((a+b)^n\). When we encounter an expression such as \((3p + 5)^2\), the binomial theorem helps us expand it efficiently without having to multiply the binomial by itself manually. The specific case of \((a+b)^2\) follows the formula:
- \(a^2\)
- \(2ab\)
- \(b^2\)
Expanding Expressions
Expression expansion is a common problem in algebra that involves breaking down expressions into a simpler or more usable form. With binomials, this usually means taking terms within parentheses and expanding them using the binomial theorem or simple distribution. When expanding a binomial squared, like \((3p+5)^2\), we apply the binomial formula, making it easier to handle complex expressions:
- First, apply the individual terms: \((3p)^2\), which yields \(9p^2\).
- Next, compute the middle term: \(2 \cdot 3p \cdot 5\), which calculates to \(30p\).
- Finally, determine the square of the last term, \(5^2\), which gives us \(25\).
Polynomial Operations Made Simple
Polynomial operations are foundational in algebra, encompassing a series of techniques used to simplify, add, subtract, and multiply polynomial expressions. In this exercise, we have a polynomial that is generated by expanding a binomial expression.
- The first step is to identify each individual term in the expression.
- Maneuvering polynomials often involves combining like terms, which are terms sharing the same variables with identical exponents.
- there is a quadratic term \(9p^2\), a linear term \(30p\), and a constant \(25\).