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
lesya692 [45]
2 years ago
9

What are the types of roots of the equation below?x^4 - 81 = 0​

Mathematics
1 answer:
natali 33 [55]2 years ago
4 0

Answer:

x^4 - 81 = 0  

(x² - 9)(x² + 9) = 0  

Notice that the first of these is itself a difference of two squares:  

(x - 3)(x + 3)(x² + 9) = 0  

So the solutions are x = 3, x = -3, x = 3i, x = -3i

You might be interested in
I forgot how to do this. ill give u a brainliest
zmey [24]

Answer:

Possible answers could be that you have 400 adults and no children, or you could have 100 children and 340 adults.

8 0
2 years ago
Please help mee. Please help mee.
Luda [366]
What do you need help with
7 0
3 years ago
Read 2 more answers
What are two integers whose sum is -2 and product is -80?
astra-53 [7]

Answer:

We can write:

x + y = -2

xy = -80

We can rewrite the first equation as x = -y - 2 and then plug that into the second equation to get (-y-2) * y = -80 → -y² - 2y = -80 → y² + 2y - 80 = 0 → (y - 8)(y + 10) = 0 → y = 8, -10. Substituting these values into the first equation we get x = -10, 8 so the answer is (x₁, y₁) = (-10, 8) or (x₂, y₂) = (8, -10).

4 0
3 years ago
Kim bought 24 apples at the market. She put 4 apples into each of 4 drawers in her kitchen. She gave the rest of them to her fri
Maru [420]
Kim bought 24 apples at the market.
She put 4 apples into each of 4 drawers in her kitchen.
She gave the rest of them to her friend.
How many apples did?

First lets find out how many she put in the drawers.

We know
4 apples per draw
4 drawers = ? apples 

4 × 4 = 16
4 drawers = 16 apples

How many does she give her friend when she buys 24 apples and keeps 16 apples?

24 - 16 = amount of apples she gives her friend.
24 - 16 = 8
Kim gives her friend 8 apples. 

Answer: D. 8 
6 0
3 years ago
a rectangular swimming pool has a with of 25feet and an area of 1225 squares feet, what is the pools length
TEA [102]
The answer would be 49ft.
1,225ft÷25ft=49ft
7 0
2 years ago
Read 2 more answers
Other questions:
  • Which number line correctly shows 2 2/5, 2 4/5, and 11/5?
    15·1 answer
  • When you need a fraction of a number like 1/3 of 9 how do you find out how much you need?
    9·1 answer
  • in golf, a player's score on each hole is always an integer. The more negative the score, the better it is. A golfer's combined
    15·2 answers
  • Find the area of the smaller sector (please help me(​
    12·1 answer
  • 100 digits of pi!!!!!!!!!!!!!!!!!!!!!!!!!!
    11·2 answers
  • The school cafeteria used 120 pints of milk to make pudding. How many gallons of milk did they use? If they needed 10 gallons to
    11·1 answer
  • Find the 51st term of the arithmetic sequence 29, 9, -11,...
    8·1 answer
  • Two numbers are in the ratio 4: 5
    8·1 answer
  • Help Please Asapppppp​
    7·1 answer
  • Can you simplify -212+(-102)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!