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
andre [41]
3 years ago
7

Which of the following tables shows the correct steps to transform x^2+6x + 8=0

Mathematics
1 answer:
Vlad1618 [11]3 years ago
7 0
Perhaps the most concise way to factor is by "completing the square" which is how the quadratic formula is derived...

x^2+6x+8=0  move constant to other side, subtract 8 from both sides

x^2+6x=-8, halve the linear coefficient, square it, then add that to both sides, in this case (6/2)^2=3^2=9

x^2+6x+9=1  now the left side is a perfect square of the form

(x+3)^2=1  take the square root of both sides

x+3=±√1  subtract 3 from both sides

x=-3±√1

x=-3±1

x=-4 and -2

Since the zeros occur when x=-4 and -2 the factors of the equation are:

(x+2)(x+4)
You might be interested in
Which rigid transformation would map TriangleMZK to TriangleQZK?
LekaFEV [45]

Answer:

C

Step-by-step explanation

just took the exam

4 0
3 years ago
Read 2 more answers
IReady Math! Please, help!
sertanlavr [38]

Answer:

A. 2 acute and 1 right angle.

6 0
3 years ago
Read 2 more answers
Two pools are being filled with water. To start, the first pool contains 2200
Lynna [10]

2200 + 21.25X = 1840 +32.50X

subtract 1840 from each side

360+ 21.25X= 32.50X

subtract 21.25x from each side

360=11.25X

x= 360/11.25 = 32 minutes pool will have the same amount

 

21.25*32 = 680+2200 = 2880 liters

32.5*32 = 1040 + 1840=2880 liters

 

 it will take 32 minutes and they will have 2880 liters each


5 0
3 years ago
To change a recipe that serves 8 to make it serve 5, by what fraction would you multiply each ingredient?
NARA [144]
Let, that fraction = x
So, 8 * x = 5
x = 5/8

In short, Your Answer would be 5/8

Hope this helps!
8 0
3 years ago
Round 43,951,842 to the nearest hundred-thousand
GrogVix [38]
I think the answer would be 44,000,000 because if you roundthe 951 it goes to 1,000
4 0
3 years ago
Read 2 more answers
Other questions:
  • What are the first 10 prime numbers and How
    15·1 answer
  • Simplify: 9^-3<br><br><br> Please help!
    13·1 answer
  • Evaluating more integrals
    15·1 answer
  • What is the solution of -83=b/4
    15·1 answer
  • Each gallon of gasoline costs $2.35. The equation y=2.35 can be used ti represent this situation. What is the constant of propor
    7·1 answer
  • An assembly line boxes nuts and bolts. One box can hold 5 1/2 pounds of nuts and 3 pounds 6 ounces of bolts. What is the total w
    9·1 answer
  • Please help !!!! she said 2 of them were the answer
    8·1 answer
  • Answer helppppp plsss i’m on quizzzz
    9·1 answer
  • Please help me I will give you extra points and whoever the first one to answer I mark you with the brain thing. #5
    12·1 answer
  • Find m∠U.<br> Write your answer as an integer or as a decimal rounded to the nearest tenth.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!