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Finding the Difference
Find the difference of the polynomials:
First, distribute the subtraction by changing the sign of every term in the second polynomial:
Next, rearrange the terms to group the like terms together:
Finally, combine the like terms. Notice that , so the -term is eliminated:
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Intermediate Algebra @ OpenStax
Ch.5 Polynomials and Polynomial Functions - Intermediate Algebra @ OpenStax
Algebra
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Simplifying Terms in Polynomial Operations
Refining a Revenue Projection Model
Simplifying
Finding the Sum
Finding the Sum
Finding the Sum
Finding the Difference
Finding the Difference
Finding the Difference
Subtracting from
Finding the Sum
Simplifying
Simplifying
Simplifying
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
Your company's finance team models quarterly revenue using the expression and quarterly expenses using . To report the projected profit, you must find the difference between revenue and expenses by evaluating . Arrange the steps in the correct order to simplify this expression.
A logistics coordinator uses the expression to represent the operational costs of Route A and for Route B. To calculate how much more expensive Route A is than Route B, the coordinator evaluates . Based on the simplification steps for this expression, what is the final simplified form?
A project manager at a manufacturing firm is comparing two cost-efficiency models represented by polynomials: Model A is and Model B is . To calculate the difference between the two models, the manager evaluates . Match each stage of the simplification process with its correct mathematical result.
A project manager is calculating the difference between two quarterly cost-efficiency models represented by the polynomials and . After fully simplifying the difference , the constant term in the resulting expression is ____.
An operations manager is comparing two production cost models represented by the polynomials and . To calculate the difference between these models, the manager evaluates . True or False: In the first step of this calculation, distributing the subtraction sign across the second polynomial results in the terms .
Distributing Subtraction in Polynomial Cost Models
Comparing Production Efficiency Models