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
taurus [48]
3 years ago
13

What is the completely factored form of d^4 - 81

Mathematics
2 answers:
White raven [17]3 years ago
5 0

Answer:

(d - 3)(d + 3)(d² + 9)

Step-by-step explanation:

d^{4} - 81 ← can be factored as a difference of squares

a² - b² = (a - b)(a + b), thus

d^{4} - 81

= (d²)² - 9²

= (d² - 9)(d² + 9)

Note that d² - 9 is also a difference of square, so

= (d - 3)(d + 3)(d² + 9) ← in factored form

Flauer [41]3 years ago
4 0

Answer:

Step-by-step explanation:

d^4-81

(d^2)^2-(9)^2

Using formula

(d^2+9)(d^2-9)

You might be interested in
Help me lol !! will give brainleist
katovenus [111]

Answer:

28

Step-by-step explanation:

Since, Sum of triangle is equal to 180°

180 = 2x + 50 + 3x - 10

180 = 5x + 40

180 - 40 = 5x

140 = 5x

140/5 = x

28 = x

3 0
2 years ago
Read 2 more answers
-13x - 8 = 5 - 8x -3
kramer

Answer:

x = -2

Step-by-step explanation:

-13x - 8 = 5 - 8x - 3 \\\\-13x + 8x = 5 - 3 + 8 \\\\-5x = 10 \\\\x = \frac{-10}{5} = -2

3 0
3 years ago
Plz help! (will make brainliest!)​
Ket [755]

Answer:

D

Step-by-step explanation:

If x is not equal to zero, then 1/x can be equal to x.

So which is k * 1/x if x =1?

D, because x is the same as 1x, which is equivalent to 1/1 (x).

I may be wrong though please look at other answers and if you have questions then comment

8 0
3 years ago
Please help me.
Nat2105 [25]

Answer:

91.4 inches

Step-by-step explanation:

I will leave the explanation in the comments.

7 0
2 years ago
Read 2 more answers
A rental car company charges a base fee of $36.94 plus $0.60 per mile driven. If x represents the number of miles driven, which
Tom [10]
Answer: y=0.60x+36.94

To find the equation we just set y equal to the 0.60 cents times x miles plus the 36.94 base fee. Any questions just ask. Cheers
4 0
3 years ago
Other questions:
  • What is the domain and range of y=1+1/x
    10·1 answer
  • Yen has a salary of $3,722 each month. Her fixed monthly expenses consist of $500 for rent. She also makes the monthly car payme
    6·1 answer
  • A car traveled 3⁄4 mile in one minute at constant speed. What was the speed of the car in miles per hour?
    10·2 answers
  • HELP ASAP <br><br> Find the zeros of y = x^2 - 4x - 9 by completing the square.
    14·2 answers
  • Help me out<br>Give the correct answer<br>1+2=21<br>2+3=36<br>3+4=43<br>4+5=?​
    10·2 answers
  • 3 2/5 + 4 2/7 = _________
    5·1 answer
  • Just need some help please
    5·2 answers
  • Which is taller a 180.433 inch mountain or 3,476 yard mountain
    9·1 answer
  • Which of the following does not represent a function?
    5·1 answer
  • (x-5y,-3):(1,3y-x) find value of x and y<br>Please help me to solve thiss!!​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!