3 years ago

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)

x³ + 3³

= (x+ 3) (x² - x * 3 + 3²)

= ( x + 3 ) ( x² - 3x + 9)

Hope this helps you.

You might be interested in

Which measurement would Jordan need to know when ordering bricks for her patio?

ozzi

C. The total area of the patio.
If you don't know the area you can't know how many bricks you need.

4 0

3 years ago

Read 2 more answers

Let X, the number of flaws on the surface of a randomly selected boiler of a certain type, have a Poisson distribution with para

kvasek [131]

Answer:

(a) 0.932

(b) 0.0653

(d) 0.316

(e) 0.251

Step-by-step explanation:

From the table with mean parameter μ = 5, we can compute the following cumulative and density probability

(a) $P(X \leq 8) = 0.932$ (cumulative)

(b) P(X = 8) = 0.0653 (density)

(d) $P(5 \leq X \leq 8) = P(X \leq 8) - P(X \leq 5) = 0.932 - 0.616 = 0.316$ (cumulative)

(e) $P(5 < X < 8) = P(X \leq 8) - P(X \leq 5) - P(X = 8) = 0.932 - 0.616 - 0.0653 = 0.251$

5 0

3 years ago

What is the equation of the line shown written in slope-intercept form?

Nataly [62]

It would be Y=2 as it's a horizontal line at y=2

6 0

3 years ago

Read 2 more answers

What is 2.4×10 to the seventh power

kotykmax [81]

This is easy once you look at it you just have to move the decimal 7 places and you'll get 24,000,000

8 0

3 years ago

Which of these expressions represents the sum of two rational numbers being rational?

GaryK [48]

Answer:

i think its number 2 hope its correct

3 0

3 years ago