Sign In
Ask Question
Payton Larson
Mathematics
29 August, 05:14
The solution of y²-2y=8
a) 0 or 2
b) 5 and 10
c) 0 and - 2
d) 2 and 5
+1
Answers (
2
)
Troy Mccarthy
29 August, 05:35
0
y = - 2 and y = 4
Step-by-step explanation:
Given
y² - 2y = 8 (subtract 8 from both sides)
y² - 2y - 8 = 0
Consider the factors of the constant term ( - 8) which sum to give the coefficient of the y - term ( - 2)
The factors are - 4 and + 2, since
- 4 * 2 = - 8 and - 4 + 2 = - 2, thus
(y - 4) (y + 2) = 0 ← in factored form
Equate each factor to zero and solve for y
y + 2 = 0 ⇒ y = - 2
y - 4 = 0 ⇒ y = 4
None of the solutions on the given list are correct
Comment
Complaint
Link
Ainsley Anthony
29 August, 05:38
0
b
Step-by-step explanation:
(y-10) (y-5) = 0
y=10, y=5
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“The solution of y²-2y=8 a) 0 or 2 b) 5 and 10 c) 0 and - 2 d) 2 and 5 ...”
in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Name the property shown by each statement and which is associative or connotation or simply.
Answers (1)
What is the domain of the following list of ordered pairs? (-1,2), (3,4), (0,-3), (1,-6)
Answers (2)
What is the solution to the system of equation y=3x-1 and y=-4 2x?
Answers (1)
Which expression can be simplified as 1/n^18 A. (n^2) ^9 B. (n^-9) ^-2 C. (n^-6) ^-3 D. (n^-3) ^6
Answers (1)
Round 672,831 to the hundreds
Answers (2)
New Questions in Mathematics
What is 6 more per week than Theodore studies
Answers (1)
Suppose there are 5 students in a room. The mean age is 20.2 20.2 years, and the median age is 19 19. If the youngest person leaves and is not replaced by another person, what happens to the mean and the median?
Answers (1)
Write (7,3) and (4,0) in slope intercept form
Answers (1)
Molly uses 192 beads to make a bracelet and the necklace it takes five times as many beads to make a necklace than it does to make a bracelet how many beads are used to make a necklace
Answers (1)
Add 1 1/3 + (-5/6) = ?
Answers (1)
Home
»
Mathematics
» The solution of y²-2y=8 a) 0 or 2 b) 5 and 10 c) 0 and - 2 d) 2 and 5
Sign In
Sign Up
Forgot Password?