Sign In Sign Up Ask an AI advisor

dnjames01

dnjames01

17.06.2021 •

Mathematics

Select the two values of x that are roots of this equation.
X2 + 2x - 5 = 0

Solved

Show answers

Ответ:

hanglenn1

17.07.2021

$x=-1+\sqrt{6 }$

$x=-1-\sqrt{6 }$

Step-by-step explanation:

$x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

Ignore the A before the ±. It wouldn't let me type it correctly.

x² + 2x - 5 = 0

a = 1

b = 2

c = - 5

$x=\frac{-2±\sqrt{2^{2}-4((1)(-5)) } }{2(1)}$

$x=\frac{-2±\sqrt{4-4((1)(-5)) } }{2(1)}$

$x=\frac{-2±\sqrt{4+20 } }{2(1)}$

$x=\frac{-2±\sqrt{24 } }{2}$

$x=\frac{-2±\sqrt{(2)(12) } }{2}$

$x=\frac{-2±\sqrt{(2)(2)(6) } }{2}$

$x=\frac{-2±\sqrt{(2)(2)(2)(3) } }{2}$

$x=\frac{-2±(\sqrt{2} )(\sqrt{2})(\sqrt{(2)(3) )} }{2}$

$x=\frac{-2±2\sqrt{6 } }{2}$

Two separate equations

$x=\frac{-2+2\sqrt{6 } }{2}$

$x=\frac{-2-2\sqrt{6 } }{2}$

$x=-1+\sqrt{6 }$

$x=-1-\sqrt{6 }$

0,0(0 оценок)

Ответ:

hardwick744

29.05.2020

Since you didn't include the picture, I can give you the description so you know how to pick the correct answer.

The third quartile of a data is always shown in a box plot. In the middle of your graph should be a box. The third quartile is the value that goes with the far right edge of the box.

0,0(0 оценок)

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.

Ask your question

More tips

B Business and Finance Moneybookers – What it is and How it Works...
O Other Childhood Fears: What Many of Us Experienced...
H Health and Medicine Simple and Effective: How to Get Rid of Cracked Heels...
L Leisure and Entertainment What to Bring on a Hike? Essential Items to Pack for a Safe and Enjoyable Adventure...
L Leisure and Entertainment Couchsurfing: A New Way to Travel...
S Style and Beauty Autotanning: Harmful or Safe?...
F Food and Cooking 10 Ideas for a Wedding Anniversary Gift...
H Health and Medicine How to Reduce Sweating in the Heat and Beyond: Say Goodbye to Excessive Sweat...
F Food and Cooking Do Aphrodisiacs Really Work? Separating Fact from Fiction...
H Health and Medicine What to Eat to Lose Weight?...

Answers on questions: Mathematics

M Mathematics 11. NK Karate Club offers two different fees for their karate classes. Club members are charged a one-time membership fee of $32 and pay $4 per class. Non-members...
M Mathematics N the circle below, what is the value of x?...
M Mathematics Thirty students are at soccer practice. Each group of three students needs a soccer ball and two field cones . How many balls and cones are needed in all? balls ___....
M Mathematics Please help please no random Answers and also please explain...
M Mathematics Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. The vector matrix (6 -2)is rotated at different angles. Match the angles of...
M Mathematics Izara built a fence for her horses. The fence was 210 feet long. She put a fence post in the ground at the start of the fence and another fence post every 3 12 feet....
M Mathematics Triangle RST has vertices located at R (2, 3), S (4, 4), and T (5, 0). Part A: Find the length of each side of the triangle. Show your work. (4 points) Part B: Find...
M Mathematics 56 students signed up to go on the class trip. If this is 70% of the class, how many students are in the class?...
M Mathematics John has $2.10 in his pocket. He is going to purchase packs of gum for $0.26 each. How many packs of gum can John buy? PLZZZ HELP...
M Mathematics HELP PLEASE AND FAST...

S Sport S Society and Politics G Goods and services C Cities and Countries A Animals and plants L Legal consultation W Work and Career C Construction and repair H Health and Medicine D Dating, Love, Relationships H Horoscopes, Magic, Divination S Style and Beauty L Leisure and Entertainment S Science and Technology P Photography and Videography A Art and Culture O Other P Philosophy F Food and Cooking B Business and Finance T Travel and tourism F Family and Home A Auto and Moto

Show more

Full access

It will provide effective and fast learning by providing unlimited access to the knowledge base and receiving answers from experts and an AI advisor.

Subscribe

Ask an AI advisor a question

I want advice

ABOUT US

About us
Terms of use
Copyright
Privacy Policy
Cookie policy
Cookie preferences

HELP

Sign Up
FAQ
Security Center

App

Spanish Geography Health Engineering Arts Social Studies Advanced Placement (AP) German SAT History Computers and Technology Physics Chemistry Biology Law Mathematics World Languages French Business Medicine