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vesna_86 [32]
3 years ago
9

What is the factored form x^3 - 1 ?

Mathematics
1 answer:
amid [387]3 years ago
7 0

Answer: x^3 - 1 = (x - 1)(x^2 + x + 1)

Explanation:

This is a type of factorizing called the sum or difference of 2 cubes:

a^3 - b^3 = (a - b)(a^2 + ab + b^2)

The sum of the cubes is factored as:

a^3 + b^3 = (a + b)(a^2 - ab + b^2)

In this case, we have: x^3 - 1 so follow the rule above.

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

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devlian [24]
        ABCDE is a regular pentagon which consists of 5 equal triangles.
Area of the pentagon ABCDE:
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       Answer: The area of the pentagon ABCDE is 341.9 cm².
8 0
3 years ago
Write the expression as a product:<br><br> (x+3)2–1
daser333 [38]

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8 0
3 years ago
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Keith_Richards [23]

Check the picture below.

8 0
3 years ago
-114=-5x-2(4x+18)<br> ????????
SVETLANKA909090 [29]

Primeiro multiplica o -2 com tudo que tem dentro do parenteses (chuveirinho)  -114 = -5x -2(4x+18)

-2 . 4x = -8x        +     -2 . 18 = -36        =   -8x-36


Agora soma os números com incógnitas (no caso x)

-114 = - 5x - 8x -36    


Joga a incógnita do outro, tornando positiva

-114 = -13x - 36            

13x -114 = -36


e o 114 do outro lado, ficando positiva também  

13x -114 = -36

13x  = - 36 + 114

13x = 78

x = 78 /13

x= 6


ESPERO TER AJUDADO :)


8 0
3 years ago
ℜ 0, -180 is the same rotation as ℜ 0, 180. True False
neonofarm [45]

Answer:

Step-by-step explanation:

The first rotation is clockwise, whereas the second is counterclockwise.  We end up at the same point either way, and the trig functions are the same.  

In summary, the final outcomes are the same, but the directions of rotation are different.   For this reason:  False

8 0
3 years ago
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