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
atroni [7]
2 years ago
11

Add the algebraic expressions x²+x-2 and 2x²-5x+7​

Mathematics
2 answers:
dalvyx [7]2 years ago
8 0

\large \mathfrak{Solution : }

  • {x}^{2}  + x - 2 + 2 {x}^{2}  - 5x + 7

  • {x}^{2}  + 2 {x}^{2}  + x - 5x - 2 + 7

  • 3 {x}^{2}  - 4x + 5

tigry1 [53]2 years ago
3 0

Answer:

3x^2-4x+5

Step-by-step explanation:

x^2+x-2+2x^2-5x+7

<u>Group like terms:</u>

<u></u>x^2+2x^2+x-5x-2+7<u></u>

<u>Add similar elements:</u>

<u></u>x^2+2x^2<u></u>

=3x^{2}

<u>Add similar elements:</u>

<u></u>x-5x<u></u>

=-4x

3x^2-4x-2+7

<u>Add the numbers:</u>

<u />-2+7

=3x^2-4x+5

<h3 /><h3>~❃❃ OPEACEO❃❃~ </h3>
You might be interested in
PLEASE HELP!!!! PLEASE! EASY!! BRAINLIEST RIGHT AWAY IF YOU EXPLAIN!!!
White raven [17]

Answer:

First picture: 60

Second picture:

Step-by-step explanation:

The first step for the first picture is to find the area of the triangle on top. In order to do that, we have to use the equation: (W*L*1/2)

(3*4*1/2)=6

Then, we multiply the above equation by the Height. Which makes the equation become 60.

The first step for the second picture is the same. We first find the area of the triangle on top.

(12*9*1/2)=54

Then we multiply the height by our above answer.

(54*20)=1,080

The other measurements that were there aren't needed. So, next time, completely ignore them!

Hope you have a good day/night! Good luck!

3 0
3 years ago
Read 2 more answers
8x = 96<br> How would I solve for x
Vaselesa [24]

How to solve your problem

6 0
2 years ago
Read 2 more answers
Sum of 2 numbers is 42, and their difference is 8. What are the numbers?​
Tems11 [23]

Answer:

25 , 17

Step-by-step explanation:

Let the unknown two numbers be x & y.

According to the question,

Sum of 2 numbers is 42.

x + y = 42  ⇒ ( 1 )

Their difference is 8.

x - y = 8 ⇒ ( 2 )

First let us find the value of x.

( 1 ) + ( 2 )

x + y + x - y = 42 + 8

2x = 50

Divide both sides by 2.

x = 25

And now let us find the value of y.

x + y = 42

25 + y = 42

y = 42 - 25

y = 17

Therefore, the two numbers are 25 , 17

Hope this helps you :-)

Let me know if you have any other questions :-)

8 0
2 years ago
Read 2 more answers
I don't need an answer anymore.
Ghella [55]
Is this a question? Or what is the question if you first said it?
4 0
3 years ago
Convert the decimal expansion 0.31717 to a fraction.
Ipatiy [6.2K]
0.31717 can be written as the fraction <span>31717/100000.

I hope this help :P</span>
4 0
3 years ago
Other questions:
  • Which expressions represent this model?
    14·2 answers
  • What is m? 49° 77° 98° 161°
    7·2 answers
  • How do you do number 2? Help please and thank you.
    5·1 answer
  • Whats the lcm of 7 and 12
    11·1 answer
  • Angles T and V are complementary.Angle T has a measure of (2x+10) Angle V has a measure of 48 what is the value of x
    12·1 answer
  • 7−5+3−1 With no solution
    11·1 answer
  • Ruth filled her car with 21.2 gallons at the start of her trip. Upon arrival she recorded her odometer mileage of 43796 miles, b
    14·2 answers
  • What statements are correct? Check all that apply. The conditional probability formula is P(x l n m PO) The conditional probabil
    5·1 answer
  • BRAINLY!! SHOW YOUR WORK!! 69 POINTS!! PLS SHOW YOUR WORK!!
    8·2 answers
  • Please help me on the second one. I do not know the answer
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!