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
Ann [662]
3 years ago
5

-8x^2-3x+5+2x^2+7x-5

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0
-6x^2+4x

my reasoning:
eliminate the opposites (5 & -5)
collect the like terms (-8x^2 & + 2x^2)
collect the like terms again (-3x &+7x)
You might be interested in
Find the nth term of this quadratic sequence<br> 3, 11, 25, 45, .
Hoochie [10]

The term of the given quadratic sequence is found to be 3n² - n + 1 using the principle of mathematical induction.

Given,

In the question:

The quadratic sequence is :

3, 11, 25, 45, ...

To find the nth term of the quadratic sequence.

Now, According to the question;

The first term of the sequence is 3, the second term is 11, the third term is 25, and the fourth term is 45.

The difference between the first and second terms can be calculated as follows:

11-3 = 8

The difference between the second and third terms can be calculated as follows:

25-11 = 14

The difference between the third and fourth terms can be calculated as follows:

45-25 = 20

The sequence is expressed as follows:

3,3+8,11+11,25+20,...

The difference between consecutive terms expands by 6.

Use the principle of mathematical induction.

6(\frac{n(n+1)}{2} )

= 3n(n+1)

The sequence's nth term can be calculated as follows:

term = 3n(n+1) - 4n + 1

             = 3n² - n + 1

Hence, the term of the given quadratic sequence is found to be 3n² - n + 1 using the principle of mathematical induction.

Learn more about Principle of mathematical induction at:

brainly.com/question/29222282

#SPJ1

6 0
1 year ago
Last year there were 120 students in choir. This year, 30% more students took choir. How many students are taking choir this yea
soldi70 [24.7K]

Answer:

156 students

Step-by-step explanation:

To find how many students are in choir this year, multiply 120 by 1.3

120(1.3)

= 156

So, this year, 156 students are taking choir

7 0
3 years ago
Read 2 more answers
SOMEONE HELP ME PLEASEEEEE
Sergeu [11.5K]
The answer is b if you do the equation right

5 0
3 years ago
Read 2 more answers
5. Use each integer to describe a situation.<br> a) +5000:<br> b) -5:
gtnhenbr [62]

Answer:

A) +5000

Step-by-step explanation:

I'm not sure of my answer but

hope that help

7 0
2 years ago
X²=9 determine if x belongs to Q or belongs to Q dash​
Elis [28]

x = 3 is the answer can you pls add me brainliest answer

4 0
2 years ago
Other questions:
  • Complete the solution of the equation. find the value of y when x equals -1. 8x - 2y= 10
    5·2 answers
  • In one school, 5/6 of the sixth-graders take a foreign. Of these students take, 2/5 take French.
    6·1 answer
  • Another algebra question :/
    11·2 answers
  • Solve the equation -5x+31+3x=3
    14·1 answer
  • The graph below shows Roy's distance from his office (y), in miles, after a certain amount of time (x), in minutes: Graph titled
    7·1 answer
  • Naoki's bicycle has a mass of 10 kg. If Naoki sits on her bicycle and starts pedaling with a force of 105.6 N, causing an accele
    10·1 answer
  • A retail store makes k% profit on the selling price. What is the least integer value of k that will enable the store to make a p
    15·1 answer
  • How do you make zero’s and one’s with equations
    10·1 answer
  • What is 1 + 7k + k = -7? With work provided
    14·2 answers
  • Two families are going sailing. Family A leaves the marina and sails 2.3 miles due north, then sails 3 miles due west. Family B
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!