Sign In
Ask Question
Jacob Hayden
Mathematics
10 August, 03:06
How to solve Y^2-8y-16
+5
Answers (
1
)
Nadia Hughes
10 August, 03:32
0
You can't solve it because it isn't equal anything
but we can factor
since the quadratic coefient (number in front of y^2 term) is 1
we can do this
for ax^2+bx+c
when a=1
what 2 numbers multiply to c and add to b
what 2 numbers multiply to - 16 and add to - 8
no numbers
if you had y^2-8y+16 then that would be (x-4) (x-4)
but no
ok, so we need to complete the squaer
so
y^2-8y-16
take 1/2 of linear coefient and square it
-8/2=-4, - 4^1=16
add negative and poisitve to it
y^2-8y+16-16-16
factor
(y-4) ^2-16-16
(y-4) ^2-32
then we can force factor again
remember difference of 2 perfect square
a^2-b^2 = (a+b) (a-b)
√32=4√2
so
(y-4) ^2 - (4√2) ^2 = (y-4+4√2) (y-4-4√2)
the factore form would be (y-4+4√2) (y-4-4√2)
not equal to anything tho so we can't solve
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“How to solve Y^2-8y-16 ...”
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
How do i solve this equation Your friend's final bowling score is 105. Your final bowling score is 14 pins less than your friend's final score. a. Write and solve an equation to find your final score. Use xx to represent your final score.
Answers (1)
Analyze equation below and determine the slope of the line it describes. Round the answer to one decimal place. 4 x - 7 y = 25 m =
Answers (1)
Pasha works as a food scientist. He designed a recipe for crackers that are 60% wheat flour by weight. He made a test batch of the crackers from 1 1/4 total pounds of ingredients. What weight of wheat flour did Pasha use in the test batch?
Answers (1)
Find the gcf of 8a3 b2 and 12ab4
Answers (1)
The ski team has a race in 3 hours and it is 120 miles away. the team drives 50 miles each hour. will they arrive at the same time?
Answers (1)
New Questions in Mathematics
Chef alonso wants each serving of the dish to include 1/2 pound of chicken. how many 1/2 pound servongs does this recipe make?
Answers (1)
Jun used 3 milliliters, or 90%, of his favorite bottle of hot sauce.
Answers (1)
What is 0.012 in precentage
Answers (2)
The imaginary monster Dracula is 574 years old, according to legend. Since that very first birthday long ago, when he happily blew out 1 candle on a cake decorated with drippy red frosting, how many birthday candles has he blown out in his whole
Answers (1)
Evaluate the expression for the given value of the variable:a + 6 when a = 2
Answers (2)
Home
»
Mathematics
» How to solve Y^2-8y-16
Sign In
Sign Up
Forgot Password?