1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tino4ka555 [31]
3 years ago
6

Find the roots x2 + 4x + 5 = 0

Mathematics
2 answers:
aev [14]3 years ago
8 0

Step-by-step explanation:

x {}^{2} + 4x + 5 \\ x {}^{2}  + 5x - x + 5 = 0 \\ x(x + 5) - 1(x + 5) = 0 \\ (x - 1)(x + 5)  = 0 \\ x - 1 = 0 \:  \:  \:  \:  \:  \:  \: x + 5 = 0 \\ x = 1 \:  \:  \:  \:  \: x =  - 5

Evgen [1.6K]3 years ago
3 0

Answer:-5/6

Step-by-step explanation:

x*2+4x+5=0

add similar elements: 2x+4x=6x.

6x+5=0

Subtract 5 from both sides.

6x+5-5=0-5.

simplify.

6x=-5

divide both sides by 6

6x/6=-5/6

answer

-5/6

You might be interested in
Solve this multi step equation: 8a + 2(1 - 5a) < 20 (dash under <)
Citrus2011 [14]
Okay. Basically, a is greater than or equal to 9.
First, you do distribute the 2.
8a+2-10a(< or =)20
Subtract two on both sides.
8a-10a(< or =)18
Then subtract 10a from 8a
-2a(< or =)18
Divide by two on both sides
and switch around the greater than sign since you divided by a <span>-2
</span>a(> or =)-9
<span>And if you check, -9 works, -8 works, and -10 doesn't work.</span>
5 0
3 years ago
Read 2 more answers
There are 3 cats in a room and no other creatures. Each cat has 2 ears, 4 paws, and 1 tail. Which of the following shows a ratio
Maru [420]
A. 1:2:4
None of the other ones fit correctly.
3 0
2 years ago
Read 2 more answers
Carolyn paid a mechanic x dollars per hour for a 5-hour job plus $70 for parts. The total charge was less than $320. Which equat
snow_lady [41]

Answer: should be 70+50x is less than 320

Step-by-step explanation:$70 is only added once, and for 5 hours, she pays him a certain amount of $(x). I don't know if the multiple choices are valid

3 0
2 years ago
Solve 8x + c = k for x
mr Goodwill [35]
Ok so this is how you do it.....
You need to get x by itself.
8x + c = k
Subtract c.
8x = k - c
Divide 8 from both sides.
x = k - c / 8
I hope this helps love! :)
3 0
3 years ago
Read 2 more answers
Which of the following represents a statistical question
luda_lava [24]
There are no choices to pick
7 0
2 years ago
Other questions:
  • Which is greater 1 9/16 or 1 5/8
    13·1 answer
  • Does anyone know this
    8·1 answer
  • What would be the answer of my fractions <br> 9 1/2 + 4 3/5=
    7·2 answers
  • What are the x-intercepts of the graph below of the function below y=x^2+2x-15
    5·2 answers
  • Two angles of a triangle have equal measures, but the third angle's measure is 36° less than the sum of the other two. Find the
    5·1 answer
  • Select the correct answer.
    13·1 answer
  • Write equations for the horizontal and vertical lines passing through the point (6,4).
    12·1 answer
  • 8 divided by 0.61 show me how you solved it
    13·1 answer
  • Pls answer it fast i will mark you as brainiest.
    9·1 answer
  • the brain volumes ​(​) of 50 brains vary from a low of to a high of . use the range rule of thumb to estimate the standard devia
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!