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
ahrayia [7]
3 years ago
9

What formula should be used when factoring the expressionn x^3+27

Mathematics
1 answer:
kobusy [5.1K]3 years ago
5 0

x³ + 27 which can be written as x³ + 3³

It is in the form of a³ + b³ = ( a + b) ( a² - ab + b²)

so

x³ + 3³

= (x+ 3) (x² - x * 3 + 3²)

= ( x + 3 ) ( x² - 3x + 9)

Hope this helps you.

You might be interested in
Pls help, will mark brainliest
SashulF [63]

Step-by-step explanation:

\frac{\pi}{2}  = 90

its 1/4 of the circle

circle circumference:

8 \times \pi

we need 1/4 of it, so its

2 \times \pi = 6.28

5 0
3 years ago
X+y+2=-5 -2x-y+2=-1 x-2y-2=0 solve algebraically
Rina8888 [55]

Answer:

x+y+2=-5 -2x-y+2=-1 x-2y-2=0 solve algebraically

x+y+2=-5     equation 1

-2x-y+2=-1    equation 2

x-2y-2=0      equation 3

Add equation 1 + 2+ 3

x+y+2=-5 + -2x-y+2+1 + x-2y-2

x+y+2= -7+2+1-2x+x+y

x+y+2= -4-x+y

x+y+2+4+x-y= 0

2x+6= 0

2x= -6

divide both side by 2

x= -3

from equation 1 insert x

x+y+2=-5

since x=-3

then, -3+2+y= -5

-1+y= -5

y= -5+1

y= -4

Step-by-step explanation:

7 0
3 years ago
Add the following decimals​
Fantom [35]

Answer:

148.91

Step-by-step explanation:

hope it helps<333

5 0
3 years ago
Which number is not equal to one of the following expressions?
DanielleElmas [232]
C: 703.5 is the answer
8 0
3 years ago
Solve the system of elimination -2x+2y+3z=0 -2x-y+z=-3 2x+3y+3z=5
Dahasolnce [82]

Answer:

x = 1 , y = 1 and z = 0

Step-by-step explanation:

-2x+2y+3z=0    ------(1)

-2x-y+z=-3     --------(2)

2x+3y+3z=5    ---------(3)

<u>To find the values of x,y and z</u>

(3) - (2)⇒ 2y + 4z = 2

y + 2z = 1   --------(4)

(1) - (2)⇒ 3y +2z =3   ---(5)

(5) - (4)⇒ 2y = 2

y = 1

Substituting the value of y in (4) we get z =0

Substituting the value of y and z  in (1) we get x = 1

Therefore x = 1 , y = 1 and z = 0

5 0
3 years ago
Other questions:
  • Anyone know this pls help
    14·1 answer
  • Write the prime factorization of 500 using exponents
    14·1 answer
  • How do you get the awnser os 3.55 divided by 5 equals 0.71
    13·1 answer
  • VX<br> What is the area of the parallelogram?<br> 18 cm<br> 28 cm. <br> 36 cm<br> 45 cm
    13·1 answer
  • V^2=12^2+2(-6)(9) give me the answer please
    14·2 answers
  • Which algebraic expression represents the difference of e squared and twenty-one? A. E2+21 b.21 times e2 c. E2 - 21 d. 21 divide
    10·1 answer
  • Solve for 28=3(x+8)+x
    5·1 answer
  • Hi can you please help me ​
    7·2 answers
  • Please Help!! The question is on the screenshot I attached.
    12·1 answer
  • Find the total amount owed, to the nearest cent, for the following simple interest loans. (3 points each)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!