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
Setler79 [48]
3 years ago
11

Simplify x^3+3x^2-x+2x^2+6x-2

Mathematics
2 answers:
Fudgin [204]3 years ago
4 0
<span>x^3+3x^2-x+2x^2+6x-2 
</span><span>x^3+5x^2+5x-2 <-----------------Simplified. </span>
timurjin [86]3 years ago
3 0
Hey there :)

x³ + 3x² - x + 2x² + 6x - 2

Combine like-terms
x³ + 3x² + 2x² - x + 6x - 2
x³ + 5x² + 5x - 2
You might be interested in
An architect is drafting plans for a new supermarket. There will be a space 144 inches long for rows of NESTED shopping carts (T
slamgirl [31]

Answer:

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A bag contains 10 marbles of the same size that are red, yellow, and orange. The probability of picking a red marble is 10%. The
gizmo_the_mogwai [7]
The probability of picking a orange marble it 30%
3 0
3 years ago
Read 2 more answers
Henry ate 3/8 of a sandwich. Keith ate 4/8 of the same sandwich. How much more of the sandwich did Keith eat than Henry?
ludmilkaskok [199]
4/8-3/8=1/8more

Therefore Keith at 1/8 more of the sandwich than Henry.
6 0
2 years ago
Show 2 different solutions to the task.
laila [671]

Answer with Step-by-step explanation:

1. We are given that an expression n^2+n

We have to prove that this expression is always is even for every integer.

There are two cases

1.n is odd integer

2.n is even integer

1.n is an odd positive integer

n square is also odd integer and n is odd .The sum of two odd integers is always even.

When is negative odd integer then n square is positive odd integer and n is negative odd integer.We know that difference of two odd integers is always even integer.Therefore, given expression is always even .

2.When n is even positive integer

Then n square is always positive even integer and n is positive integer .The sum of two even integers is always even.Hence, given expression is always even when n is even positive integer.

When n is negative even integer

n square is always positive even integer and n is even negative integer .The difference of two even integers is always even integer.

Hence, the given expression is always even for every integer.

2.By mathematical induction

Suppose n=1 then n= substituting in the given expression

1+1=2 =Even integer

Hence, it is true for n=1

Suppose it is true for n=k

then k^2+k is even integer

We shall prove that it is true for n=k+1

(k+1)^1+k+1

=k^1+2k+1+k+1

=k^2+k+2k+2

=Even +2(k+1)[/tex] because k^2+k is even

=Sum is even because sum even numbers is also even

Hence, the given expression is always even for every integer n.

3 0
3 years ago
9. If f(x)=-2x^2+4x-6, <br> then f(2)=
Romashka-Z-Leto [24]

Answer:

f(2) = -6

General Formulas and Concepts:

Order of Operations: BPEMDAS

Substitution and Evaluation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -2x² + 4x - 6

f(2) is x = 2

<u>Step 2: Solve</u>

  1. Substitute:                          f(2) = -2(2)² + 4(2) - 6
  2. Exponents:                         f(2) = -2(4) + 4(2) - 6
  3. Multiply:                              f(2) = -8 + 8 - 6
  4. Add:                                    f(2) = -6
3 0
3 years ago
Other questions:
  • What is the measure of
    7·1 answer
  • For which of the following situations would the central limit theorem not imply that the sample distribution for x¯x¯ is approxi
    8·1 answer
  • Factor z^2 – 3z – 18. A. (z + 3)(z – 6) B. (z – 3)(z – 6) C. (z + 8)(z – 10) D. (z + 2)(z – 9)
    8·1 answer
  • Which of the following equations has the same solutions as the equations 3x+2y=-12
    13·1 answer
  • -6+5 1/4<br> I need help
    6·2 answers
  • A triangle has side lengths measuring 2x + 2 ft, x + 3 ft,
    14·2 answers
  • What is the least common multiple of 10 and 27
    8·1 answer
  • Please answer question need help on quiz
    13·1 answer
  • How do you find the area of a circle?​
    5·1 answer
  • I will mark brainliest / About Solving linear and quadratic equations i need help in these two questions because I didn't unders
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!