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
Arada [10]
3 years ago
15

S the expression x3•x3•x3 equivalent to x3•3•3

Mathematics
1 answer:
Artyom0805 [142]3 years ago
3 0
Remember
(x^m)(x^n)=x^(m+n)
and difference of 2 perfect squres
(a²-b²)=(a-b)(a+b)
and sum or difference of 2 perfect cubes

so
(x^3)(x^3)(x^3)=x^(3+3+3)=x^9
so

x^9=3*3*x^3
x^9=9x^3
minus 9x^3 both sides
0=x^9-9x^3
factor
0=(x^3)(x^6-9)
factor difference of 2 perfect squraes
0=(x^3)(x^3-3)(x^3+3)
factor differnce or sum of 2 perfect cubes (force 3 into (∛3)³)
0=(x³)(x-∛3)(x²+x∛3+∛9)(x+∛3)(x²-x∛3+∛9)
set each to zero

x³=0
x=0

x-∛3=0
x=∛3

x²+x∛3+∛9=0 has no solution

x+∛3=0
x=-∛3

x²-x∛3+∛9=0 has no solution



so the solutions are
x=-∛3, 0, ∛3
You might be interested in
I will give brainliest!
goldfiish [28.3K]

Answer:

Step-by-step explanation:

6 0
2 years ago
What is the point in the middle of a circle called?
Rus_ich [418]
The answer is b. Center
3 0
3 years ago
Read 2 more answers
BRAINLIEST ANSWER RN!!!!!!! HELP ME PLZZ!!!!!
lara [203]
Find surface area
SA=2pir^2+2hpir

h=42
r=1.5

SA=2pi1.5^2+2(42)pi1.5
SA=4.5pi+126pi
SA=130.5pi square inches


area/areacoverdperspray≤numberofsprays
130.5pi/150
2.73
so buy 3 cans because you can't get 0.73 cans

A
3 0
3 years ago
The ratio of passenger cars to cargo cars in
gayaneshka [121]

Answer:

126

Step-by-step explanation:

the number of cargo cars is represented by the 35 part of the ratio , then

105 ÷ 35 = 3 ← value of 1 part of the ratio , then

passenger cars = 7 × 3 = 21

total cars = 105 + 21 = 126

4 0
2 years ago
part 2 : A local pizzeria sold 72 pizzas yesterday. Suppose the actual number of pizzas sold was 77. Determine if the number of
svp [43]

Answer: 6.9% increase


Step-by-step explanation: original: 72

                                              new: 77          5              x         =     500    = 6.9%

                                                                      72           100               72


8 0
3 years ago
Other questions:
  • A card is selected at random from a deck of well shuffled cards. It is replaced and another card is selected. What is the probab
    15·1 answer
  • (2.01)
    10·1 answer
  • S=hp+2b solve for h i forgot the word to decribe how i forgot to do tis
    6·1 answer
  • Central Park is a rectangular park in New York City. A map of Central Park in New York City. The measured length is 12.5 centime
    14·1 answer
  • According to the EPA, about 40 million U.S. tons of hazardous waste is produced each year. If individual household waste makes u
    13·1 answer
  • PLZ HELPPPPPP<br> I NEED THIS QUICK
    5·1 answer
  • Find angle m and angle n
    15·1 answer
  • Which one is a polynomial ? it’s not B!!
    9·1 answer
  • Please help 100 points
    10·1 answer
  • Harold had 1400 stamps he gave 350 of them to his brother and the rest to his sister.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!