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Finding the Sum
Find the sum of the polynomials:
First, identify the like terms. The -terms are and ; the -terms are and ; the constants are and .
Next, rearrange the terms to group them together:
Finally, combine the like terms by adding their coefficients:
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Ch.5 Polynomials and Polynomial Functions - Intermediate Algebra @ OpenStax
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Finding the Sum
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Addition of Polynomial Functions
Arrange the steps in order to simplify .
When subtracting one polynomial from another, you must change the _____ of every term in the polynomial being subtracted before combining like terms.
When subtracting one polynomial from another, what is the first step?
The Commutative Property of Addition lets you reorder the terms of a polynomial so like terms can be grouped together.
Match each term to its meaning for adding and subtracting polynomials.
When you add the like terms and , what happens to the variable part?
Explain how to subtract one polynomial from another. What extra step is needed compared to adding polynomials?
When you combine like terms, such as and , what part of each term do you add or subtract?
Learn After
A warehouse manager is calculating the total inventory of two different storage zones. The inventory for Zone A is represented by the polynomial , and the inventory for Zone B is represented by . To find the combined inventory, the manager must first identify which terms are 'like terms.'
Match each term from the Zone A polynomial with its corresponding like term from the Zone B polynomial.
An operations manager is merging the productivity formulas for two different manufacturing lines. The productivity of Line A is modeled by and Line B by . To find the company's total productivity formula, the manager must add these polynomials. Arrange the following steps in the correct order to find the simplified sum.
A logistics coordinator is merging two fuel consumption models for a shipping fleet to determine total efficiency. The model for Route A is represented by the polynomial , and the model for Route B is represented by .
What is the simplified polynomial that represents the total fuel consumption for both routes combined?
A store manager is combining two inventory growth models for different product lines. The model for Line A is and the model for Line B is . When these models are added and simplified, what is the coefficient of the term?
A supply chain analyst is reviewing a budget report where the projected costs for two different distribution centers are modeled by the polynomials and . The report claims that the combined projected cost for both centers is correctly modeled by the simplified polynomial .
Combining Cost Projection Models
Explaining Like Terms in Business Formulas