ACT Exam > ACT Questions > If y2= y + 7, then what is the value of y3?a)... Start Learning for Free
If y2 = y + 7, then what is the value of y3?
- a)8y + 7
- b)y + 14
- c)y + 2
- d)4y + 7
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y...
Given: y^2 = y - 7
To find: The value of y^3
Solution:
To find the value of y^3, we need to multiply y^2 by y.
y^2 * y = (y - 7) * y
Expanding the equation:
y^3 = y * y - 7 * y
Simplifying further:
y^3 = y^2 - 7y
But we already know that y^2 = y - 7.
Substituting this value into the equation:
y^3 = (y - 7) - 7y
Simplifying again:
y^3 = y - 7 - 7y
Combining like terms:
y^3 = -6y - 7
Therefore, the value of y^3 is -6y - 7.
Answer:
The correct option is (A) 8y - 7.
To find: The value of y^3
Solution:
To find the value of y^3, we need to multiply y^2 by y.
y^2 * y = (y - 7) * y
Expanding the equation:
y^3 = y * y - 7 * y
Simplifying further:
y^3 = y^2 - 7y
But we already know that y^2 = y - 7.
Substituting this value into the equation:
y^3 = (y - 7) - 7y
Simplifying again:
y^3 = y - 7 - 7y
Combining like terms:
y^3 = -6y - 7
Therefore, the value of y^3 is -6y - 7.
Answer:
The correct option is (A) 8y - 7.
Free Test
FREE
| Start Free Test |
Community Answer
If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y...
Given y2 = y + 7
Multiplying LHS and RHS by y
⇒ y3 = y2 + 7y
∴ y3 = y + 7 + 7y = 8y + 7 [∵ y2 = y + 7]
 | Explore Courses for ACT exam |  |
Top Courses for ACTView all
Top Courses for ACT
Question Description
If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer? for ACT 2026 is part of ACT preparation. The Question and answers have been prepared according to the ACT exam syllabus. Information about If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for ACT 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer?.
If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer? for ACT 2026 is part of ACT preparation. The Question and answers have been prepared according to the ACT exam syllabus. Information about If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for ACT 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer?.
Solutions for If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for ACT. Download more important topics, notes, lectures and mock test series for ACT Exam by signing up for free.
Here you can find the meaning of If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer?, a detailed solution for If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice If y2= y + 7, then what is the value of y3?a)8y + 7b)y + 14c)y + 2d)4y + 7Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice ACT tests.
| Explore Courses for ACT exam | |
Top Courses for ACT
Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
