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
sergey [27]
2 years ago
11

This is quadratic equations Help asap!!

Mathematics
1 answer:
lord [1]2 years ago
3 0

Answer:

x = - 3 ± \sqrt{2}

Step-by-step explanation:

x² + 6x + 7 = 0 ( subtract 7 from both sides )

x² + 6x = - 7

using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(3)x + 9 = - 7 + 9

(x + 3)² = 2 ( take square root of both sides )

x + 3 = ± \sqrt{2} ( subtract 3 from both sides )

x = - 3 ± \sqrt{2}

You might be interested in
Chan wants to buy a used car that costs $8,500. He took out a loan for the cost of the car, and his payments are $209 per month
timama [110]
He would have paid about $1,532 dallors for the car after 4 years than the original price he has to pay for the monthly pay for the car.
4 0
3 years ago
Solve to the variable 8 = y - 3
creativ13 [48]

Answer:

y=11

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is the percentage equivalent of 1.48?
Vinvika [58]

Answer:

A. 148%

To find percent you just have to multiply your decimal by one hundred, which in this case moves the decimal to the very back and makes 1.48 = 148%

5 0
3 years ago
Profits were 18,447 last month and 14,300 the previous month. The rate of increase was what?
Sonbull [250]
The answer is 29% first you subtract the first number by the second number then make a fraction with the difference and the second number then make a decimal and make a percent out of that decimal

6 0
3 years ago
The school that Willie goes to is selling tickets to the annual talent show. On the first day of
Alexeev081 [22]

Answer:

11

Step-by-step explanation:

all you need to do is divide 156 dollars by 14 citizen

3 0
3 years ago
Other questions:
  • I don't understand this problem, please help?!?!?!
    12·1 answer
  • A sphere has a volume of 905 cubic inches. What is the diameter?
    7·2 answers
  • Plz plz help it is urgent plz plz plz plz plz
    13·1 answer
  • The length of a rectangle is 3 1/6 cm longer than the width. The perimeter of the rectangle is 15 1/3 cm. What are the width and
    8·1 answer
  • Please answer ASAP worth 20 points!
    15·2 answers
  • How many lines of symmetry does a kite have?
    7·2 answers
  • Two supplementary angles are congruent. Which equation gives the measure in degrees, d, of each angle?
    15·2 answers
  • Please help. 40 points
    11·1 answer
  • Find the nth term of this quadratic sequence.<br> 3, 11, 25, 45
    6·1 answer
  • (-8) + (-10) _(-12) =
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!