Yes or No? If No, give a reason. (a) Is the expression (x + 5) equal to x? + 25? (b) When you expand (x + a), where a + 0, do you get three terms? (c) Is the expression (x + 5)(x – 5) equal to x - 25?

Yes or No? If No, give a reason. (a) Is the expression (x + 5) equal to x? + 25? (b) When you expand (x + a), where a + 0, do you get three terms? (c) Is the expression (x + 5)(x – 5) equal to x - 25?

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.4: Solving Quadratic Equations

Problem 75E

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Question

Yes or No? If No, give a reason.
(a) Is the expression (x + 5) equal to x? + 25?
(b) When you expand (x + a), where a + 0, do you get
three terms?
(c) Is the expression (x + 5)(x – 5) equal to x - 25?

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Stock is removed from a block in two operations. The original thickness of the block is represented by n. The thickness removed by the milling operation is represented by p and the thickness removed by the grinding operation is represented by t. What is the final thickness of the block?

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