![Gabilop](/avatars/37162.jpg)
Gabilop
22.02.2020 •
Mathematics
What is the solution to 2х2+8х=х2-16?
Solved
Show answers
More tips
- C Computers and Internet How to Set Up Internet on iPhone? Detailed Guide with Step-by-Step Instructions...
- P Philosophy 8 привычек, чтобы достичь счастливой жизни...
- F Food and Cooking How Many Grams Are In a Tablespoon?...
- G Goods and services How to Choose the Right Iron: Purchase Tips...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- H Health and Medicine How to Choose the Right Glasses?...
- H Health and Medicine What vaccines do children need?...
- H Health and Medicine AKDS Vaccination: Ensure Your Child s Safety...
- H Health and Medicine Flu: How to Recognize It by the First Symptoms?...
- H Health and Medicine What to Do If You Are Bitten by a Dog?...
Answers on questions: Mathematics
- M Mathematics Urgent!!! really need help on this match each system with its solution just an answer is fine no explanation needed help is appreciated!...
- B Biology Which of these are the two major sources of nitrate pollution in rivers?...
- M Mathematics Which of the following points are on the line y= -3/2x + 2?...
- S Spanish Aspanish question. 10 point. for . i have the answer, i m just not sure if its right....
Ответ:
double, real root x = -4
Step-by-step explanation:
Please use " ^ " to indicate exponentation: 2х^2 + 8х = х^2 - 16.
Combine like terms:
х^2 + 8х = - 16.
Re-write in the standard form for a quadratic:
х^2 + 8х + 16 = 0
Recognize that this is the square of the binomial x + 4:
х^2 + 8х + 16 = 0 => (x + 4)^2 = 0
Solving this last result for x yields the double, real root x = -4.
Ответ:
answer: d) 1.34 pounds