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Errors, typos, and updates listed below were fixed in the book version identified by the prefix.

Below is a list of enhancements or fixes. The underlined text was changed to the text in bold font.​

• v2.01: Page 256 Question 6 - at the end of the first sentence added from a certain geographic region. In answer choice A changed bought to studied. In answer choice B and C added in the geographic region at the end of the sentence. Note that this does not affect the correct answer. On answer page 399 of this question, added from a certain geographic region at the end of the first sentence and added in the geographic region at the end of the second sentence.

• v2.02: Page 4 - Section 5 - Polynomial Functions was changed to Section 5 - Polynomial and Undefined Functions.

• v2.02: Page 4 - Category 27 - Undefined Polynomial Functions was changed to Category 27 - Undefined Functions.

• v2.02: Page 40 - updated first Key Points bullet to Two equations of a straight line are collectively known as system of equations.

• v2.02: Page 88 - Section 5 - Polynomial Functions was changed to Section 5 - Polynomial and Undefined Functions.

• v2.02: Page 88 - Category 27 - Undefined Polynomial Functions was changed to Category 27 - Undefined Functions.

• v2.02: Page 101 - Category 27 - Undefined Polynomial Functions was changed to Category 27 - Undefined Functions.

• v2.02: Page 353 - Section 5 - Polynomial Functions was changed to Section 5 - Polynomial and Undefined Functions.

• v2.02: Page 356 - Category 27 - Undefined Polynomial Functions was changed to Category 27 - Undefined Functions.

• v2.03: Page 273 How to solve: fourth sentence - (x-k)^2  was changed to (x-h)^2.

• v2.04: Page 108 Question 1 - Changed including answer choices. What is the sum of the zeros of the above quadratic equation was changed to Which of the following is the root of the above equation. Answer choices were changed as: A is -8, B is -5, C is 2, and D is 3.

• v2.04: Page 117 Question 7 - In the first sentence above equation was changed to function h shown above.

• v2.04: Page 119 Example 3 - Deleted No Calculation.

• v2.04: Page 153 Key points last bullet point - then the proportion was changed to then the ratio.

• v2.04: Page 358 Answer 1 was changed to reflect the changes to question 1 on page 108. Correct answer choice remains the same.

• v2.04: Answer choice verbiage was changed on several pages - Page 40 Example 1, Page 41 Example 2, Page 42 Questions 1 to 5, Page 57 Question 2, Page 109 Example 1, Page 110 Questions 1 and 6, Page 127 Example 1, Page 138 Question 20. In these questions, answer choice A was changed from None to Zero, Answer choice B was changed from One to Exactly One, and answer choice C was changed from Two to Exactly Two.

• v2.05 Page 174 Question 4 - student was changed to students.

• v2.05 Page 188 Key Points - first sub-bullet point was deleted.

• v2.06: Page 353 Answer 2 of Category 27 - B in the last sentence was changed to D.

• v2.09: Fixed the axis for a number of figures that got misaligned in v2.07.

• v2.09: Page 56 Question 8 - expression changed to equation.

• v2.09: Page 11 Example 2 - 0 removed from the end of the equation.

• v2.09: Page 136 Question 8 - 0 removed from the end of the equation.

• v2.09: Page 383 Answer 1- Changed 3.1 to 3.2.

• v2.10: Page 135 Question 3 - The equation at the end of the first sentence is g(x)=(x+2)^2-1.

• v2.10: Page 135 Answer 11 – The number for the question missing. Added 11 as the number.

• v2.11: Page 195 Question 4 - (x-1)^2 in the denominators was changed to x^2-1.

• v2.11: Page 386 Answer 4 - (x-1)^2 in the denominators was changed to x^2-1.

• v2.12: Page 153 Key Points and How to Solve - minor updates made.

• v2.12: Page 158 Example 1 Step 1 - minor updates made.

• v2.12: Page 160 Question 5 - In answer choices A and B, gallons changed to gallon.

• v2.12: Page 161 Question 10 - Last sentence changed to How many miles did Rosario drive from her home to the shopping mall.

• v2.12: Page 162 Question 5 - added in terms of r at the end of the question.

• v2.12: Page 373 Answer 7 - changed 2a=3x1 to 2a=3.

• v2.14: Page 140 - Key Points: added for extraneous solutions.

• v2.14: Page 140 - Example 1: added to check for extraneous solutions.

• v2.14: Page 142 - Question 5: changed to |3x-6|+x=2x.

• v2.14: Page 193 - Key Points: added for extraneous solutions.

• v2.14: Page 365 - Answer 5: updated for the changed question. The correct answer choice is A, which is 1.5.

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