All categories

2 years ago

Explain how to use a polynomial identity to factor x^6-27y^3

Mathematics

2 answers:

Umnica [9.8K]2 years ago

6 0

Dont really no sorry

Taya2010 [7]2 years ago

5 0

This is a sum of cubes:

x⁶ - 27y³ = (x²)³ + (-3y)³

Recall that

a³ + b³ = (a + b) (a² - ab + b²)

So we have

x⁶ - 27y³ = (x² - 3y) ((x²)² - x² (-3y) + (-3y)²)

x⁶ - 27y³ = (x² - 3y) (x⁴ + 3x²y + 9y²)

You might be interested in

Help me please ASAP

Mashutka [201]

Answer: $\frac{5}{35}$

Step-by-step explanation:

Since, the total number of contestant = 7,

Thus, the probability that out of 3 contestant, me and my friend is chosen

= $\frac{2_C_2\times 5_C_1}{7_C_3}$

= $\frac{\frac{2!}{2!0!}\times \frac{5!}{1!\times 4!}}{\frac{7!}{4!\times 3!}}$

= $\frac{1\times 5}{\frac{7\times 6\times 5\times 4!}{4!\times 6}}$

= $\frac{5}{35}$

⇒ Third Option is correct.

4 0

3 years ago

Is 6/5 closer to 1/2

Alecsey [184]

$\frac{6}{5} =\quad 1.2$

$\frac{1}{2}= \quad 0.5$

$1.2 > 0.5$

$\frac{6}{5} > \frac{1}{2}$

<h3>Hope I helped you!</h3><h3>Success!</h3>

5 0

3 years ago

Read 2 more answers

Evaluate each expression |-16| -|-1|

Maslowich

Understanding the Absolute Value.

First, know what the absolute value is.

The absolute value is the value that determines how far the value is from 0.

For example, The absolute value of -5 is far from 0 5 units. Therefore the absolute value of -5 equals 5.

Basic Absolute Value Defines

| a | = a

- | a | = -a

| - a | = a

Back to the question. To evaluate those expressions, we use the defines of absolute value.

|-16| = 16

|-1| = 1

16-(1)

Then remove the brackets. 16 - 1 = 15

Therefore, the answer is 15.

The answer above is when being subtracted and evaluated from both 16-1

Evaluating for each expressions would be

|-16| = 16

-|-1| = -1

4 0

3 years ago

Identify the value of the 7 in 7.724 (the one before the point)

Alchen [17]

The 7 before the decimal would be classified as a tenth

3 0

3 years ago

A pool holds 891 gallons. How many quarts is that? Group of answer choices

Ganezh [65]

The answer is d 3564

6 0

2 years ago

Read 2 more answers