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
arlik [135]
3 years ago
7

Solve x2 + 8x − 3 = 0 using the completing-the-square method

Mathematics
1 answer:
nikklg [1K]3 years ago
4 0
Hello :
x²+8x-3=0
(x² +2(4)x +4²) -4² -3 = 0
(x+4)²-19 = 0
(x+4)² = 19
x+4 = √19    or x+4 = - √19
 x = √19 - 4  or  x = -√19 - 4
You might be interested in
Of the students in Jill's grade, 41 students have a pet and the other 7 students do not. What is the ratio of the number of stud
quester [9]

Answer:

The answer is 7 : 48.

Step-by-step explanation:

First, you can to calculate how many students are there in Jill's grade by adding the number of students who have pet with the students without pets :

total = 41 + 7 = 48

Next, you have to find the ratio of students without pets to total students :

7 : 48

8 0
3 years ago
Read 2 more answers
What is thermodynamics ​
Art [367]

Answer:

Thermodynamics is a branch of physics that deals with heat, work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation.

4 0
2 years ago
Please help I don't knew this
schepotkina [342]
The answer to your question is b
7 0
3 years ago
Write 7/13 as a decimal and round to the nearest hundredth.
Alja [10]
0.54 is the answer!!!!!!!
4 0
3 years ago
Read 2 more answers
Which ordered pair is a solution of y = x – 4?<br><br> (3, –7)<br> (3, 7)<br> (–3, 7)<br> (–3, –7)
ivanzaharov [21]
Y=x-4

From this we plug in the answer to find the y value!

For example y=3-4=-1 A.) would be incorrect!

Y=3-4=-1 B.) would be incorrect!

C.) y= -3-4=-7 while it’s SUPPOSE to be 7.

D.) y= -3-4=-7 and y value is -7


Correct answer: D!


Please like and brainiest
7 0
2 years ago
Other questions:
  • After substituting, what is the first operation performed when evaluating 5+(9x-3)+2 for x = 5?
    12·2 answers
  • The thermosphere is one of the layers of Earth’s atmosphere. The temperature in the thermosphere can go as high as 1727°C. When
    11·1 answer
  • What is the measure of angle ACB in this triangle
    5·1 answer
  • PLZZ HELPP!!
    5·2 answers
  • Need help on maths question asap
    6·1 answer
  • 8 more than 5 times a number is -27
    11·1 answer
  • an airplane travels at a rate of 250 miles/he with the wind and at a rate of 150 miles against the wind. what is the rate of the
    13·1 answer
  • Find the slope given the two points. (2, -6) and (2, 3)
    11·2 answers
  • If an event is very unlikely to occur would it’s probability be zero
    7·1 answer
  • What is the slope and the y intercept for the graph y=7x-2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!