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
inna [77]
3 years ago
7

Subtract the second expression from the first. (3x^2+2x-1) - (x^2-3x+4)

Mathematics
1 answer:
Eva8 [605]3 years ago
7 0

Step by step solution :

Step  1  :

Equation at the end of step  1  :


 ((3x2 +  2x) -  1) -  (x2 - 3x + 4)


Step  2  :

Trying to factor by splitting the middle term


2.1     Factoring  2x2+5x-5


The first term is,  2x2  its coefficient is  2 .

The middle term is,  +5x  its coefficient is  5 .

The last term, "the constant", is  -5


Step-1 : Multiply the coefficient of the first term by the constant   2 • -5 = -10


Step-2 : Find two factors of  -10  whose sum equals the coefficient of the middle term, which is   5 .

      -10     +     1     =     -9  

      -5     +     2     =     -3  

      -2     +     5     =     3  

      -1     +     10     =     9  



Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Final result :


 2x2 + 5x - 5

brainliest plz tried rlly hard on this

You might be interested in
What is the decimal value of the fraction 2/7 ? 0.285714¯ 0.285714¯¯¯¯¯¯¯¯¯¯ 0.2857142857¯¯¯¯¯ 0.285714
Leviafan [203]
The decimal of the fraction 2/7 is 0.2857142857
4 0
3 years ago
Read 2 more answers
HELPP QUICKKK its timedd
Sever21 [200]

Answer:

10

Step-by-step explanation:

6 0
3 years ago
When water is released from the Kinzua Dam it is released gradually. The water level in Kinzua reservoir changes at an average r
Oliga [24]

Answer:

Option D

- 1916 inches

Step-by-step explanation:

To easily solve this problem, we apply a rule of three

-916 inch ---------------------------------- 3 hours

x inch ---------------------------------- 8 hour

x = 916 inc * (8 hours / 3 hours)

x =  2442.66 inch

The nearest number for this value is option D

(Lets remember we are talking about average values)

3 0
3 years ago
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 16 miles per hou
Verizon [17]
We'll use variables to represent the speeds of the eastbound and westbound trains.

x will represent the speed of the eastbound train.
y will represent the speed of the westbound train.

The eastbound train is 16 mph faster than the westbound train. An equation can be made from this:

x  - y = 16

Subtraction is used, because it represents the difference in distances between the two trains if they travel the same direction.

After 4 hours, the trains are 800 miles apart. An equation can be made from this:

4x + 4y = 800

Addition is used, because the trains are heading in opposite directions, which means their distances from the starting point are added together.

Set the two equations up vertically:

x - y = 16
4x + 4y = 800

We will use elimination to solve for x.

Multiply the entire first equation by 4 so that the coefficients for y will be opposite numbers:

(x - y = 16) \times 4 = 4x - 4y = 64

4x - 4y = 64
4x + 4y = 800

Combine the two equations together to cancel out y:

8x = 864

Divide both sides by 8 to get x by itself:

x = 108

The speed of the eastbound train is 108 mph.
5 0
3 years ago
By which rule are these triangles congruent?
Hunter-Best [27]

Answer:

A. AAS

Step-by-step explanation:

In both triangles, the line mn and jh are congruent, the angles k and g are congruent, and h and m are congruent.

5 0
3 years ago
Other questions:
  • the graph shows rate at which an oven preheats when turned on. what is the unit rate and what does it represent?
    8·2 answers
  • The following graph shows the functions f(x) and g(x): graph of function f of x equals x squared and graph of function g of x eq
    9·2 answers
  • Which of the following are considered measures of center? I. mean II. median III. interquartile range A. III only B. I and II on
    15·1 answer
  • What is the equation of a line, in Slope Intercept Form, with a slope of 4 and passes through the point (1, 6)?
    10·1 answer
  • Jayden works for Float like a butterfly sting like a bee boxing club and received 660 on his last paycheck. If he gets paid time
    8·1 answer
  • Find the slope of y+2=−2(x−3)<br> Options<br> A) -1/2<br> B) 1<br> C) -2<br> D) -1
    7·1 answer
  • In OE, m overline HQ =48,HI=JK , and JR = 7.5 . Find each measure. 1. m overline HI 2. m overline QI E AK 3. m overline JK 4. HI
    6·1 answer
  • Which describes the translation of ABCD to A'B'C'D'.
    13·1 answer
  • A university lecture hall has 100 seats. During class, 30% of the seats are empty. How many students are attending class?
    6·2 answers
  • Nila bought a "buy-one-take-one" bag. She paid Php 1, 256. How much did each bag cost
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!