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gogolik [260]
3 years ago
11

Someone know this ? I don’t understand

Mathematics
2 answers:
Mandarinka [93]3 years ago
6 0

Answer:

A) (x+1)(x-1)(x+3)

Step-by-step explanation:

x^3+3x^2-x-3

x^2 x (x+3)-(x+3)

(x+3)x(x^2-1)

(x+3)x(x-1)x(x+1): you will have to rearrange the equation though to get your answer

belka [17]3 years ago
3 0

The answer should be C if I'm thinking correctly we just went over this in Algebra 1 today. I know for sure it wouldn't Be A because you don't want your ones to cross each other out, it wouldn't be D Because of the same reason, and in B the 3 is positive whereas in the equation the 3 is negative so therefore the only logical answer is C

hope this helps

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What directed number is suggested by the statement "I gained 3 pounds "?​
sammy [17]

Answer:

The directed number suggested is +3.

Step-by-step explanation:

A directed number is one that has either a positive or negative sign, so that it could be easily located on the number line. Thus, the sign shows the direction of the number. Examples are: -2, -1, +5, +6 etc.

From the given question, let the initial weight be represented by W, then:

I gained 3 pounds implies at that; 3 pounds was added to my initial weight. Thus, my present weight is my initial weight + 3 pounds.

i.e I gained 3 pounds ⇒ W + 3

So that the directed number suggested by the statement is +3.

7 0
3 years ago
Which of the following shows the extraneous solution(s) to the logarithmic equation? log4 (x) + log4(x - 3) = log4 (-7x + 21)
Salsk061 [2.6K]
First join the log4 on the left:

log4( x*(x-3) = log4(-7x+21)

Then x = -7, works: -7*(-10)=70 = -7*(-7)+21

x=-3, 18 = 42, does not work

x=3 0=0 works,

However, when one puts x = -7 in the *original* exression, log4(-7) or log4(-10) do not exist (you know why?). So x= -7 is extraneous.

Now x=3 gives log4(0) on the left and right, which does not exist.

So, C is the answer, both are extraneous. Seem to work but indeed don't work in the *original* equation
 
6 0
3 years ago
Read 2 more answers
Marla writes the problem, 628 divided by 1300.
Maslowich

Answer:

628/1300

Step-by-step explanation:

These are what would represent her problem..

8 0
3 years ago
Read 2 more answers
Create an explicit formula for the following sequence 1/3,-1,3,-9
Travka [436]

Answer:

multiply by -3

Step-by-step explanation:

1/3 gives -3/3=-1

-1*-3=3

3*-3=-9

it defines the function f so that f(x)=-3x

8 0
3 years ago
M(3,6) is the midpoint of Rs The coordinates of S are (5,9). What are the coordinates of R? O 17, 12) O (4, 7.5) O (6, 12) O (1,
miss Akunina [59]

Answer:

Step-by-step explanation:

(x+5)/2 = 3

x + 5 = 6

x = 1

(y+9)/2=6

y+9= 12

y = 3

(1, 3)

answer is option 4

8 0
3 years ago
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