15 Asked to solve the equation p² – 11p + 28 = 2 . jai wrote the work below: Line 1 p2 - 11p + 28 = 2 Line 2 (p - 7)(p – 4) = 2 Line 3 (p - 7) = 2 or (p- 4) = 2 Line 4 p = 9 or p= 6 Which statement about Jal's work is true? Jai is incorrect. He can't solve by factoring unless one side of the equation is equal to zero. Jai is incorrect. He should have factored Line 2 as (p + 7) (p + 4) in order to follow rational number rules. © jai is incorrect. The answer should bep=7 or p =4 based on his work in Line 2. Jal is correct because he factored the trinomial p- 11p + 28 and found two solutions.
15 Asked to solve the equation p² – 11p + 28 = 2 . jai wrote the work below: Line 1 p2 - 11p + 28 = 2 Line 2 (p - 7)(p – 4) = 2 Line 3 (p - 7) = 2 or (p- 4) = 2 Line 4 p = 9 or p= 6 Which statement about Jal's work is true? Jai is incorrect. He can't solve by factoring unless one side of the equation is equal to zero. Jai is incorrect. He should have factored Line 2 as (p + 7) (p + 4) in order to follow rational number rules. © jai is incorrect. The answer should bep=7 or p =4 based on his work in Line 2. Jal is correct because he factored the trinomial p- 11p + 28 and found two solutions.
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Question 15/26
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15
Asked to solve the equation p² – 11p + 28 = 2 Jai wrote the work below:
Line 1
p2 - 11p + 28 = 2
Line 2
(p- 7)(p – 4) = 2
Line 3
(p- 7) = 2 or (p - 4) = 2
Line 4
p = 9 or p= 6
Which statement about Jal's work is true?
A Jai is incorrect. He can't solve by factoring unless one side of the equation is equal to zero.
B Jai is incorrect. He should have factored Line 2 as (p + 7) (p+ 4) in order to follow rational number rules.
© Jai is incorrect. The answer should be p=7 or p = 4 based on his work in Line 2.
D Jai is correct because he factored the trinomial p-11p+ 28 and found two solutions.
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