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polet [3.4K]
3 years ago
13

What is an easy way to add a subtract rationals?

Mathematics
1 answer:
Nadya [2.5K]3 years ago
8 0
If the two rational expressions that you want to add or subtract have the same denominator you just add/subtract the numerators which each other. When the denominators are not the same in all expressions that you want to add or subtract as in the example below you have to find a common denominator.
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Not sure how to do this problem
myrzilka [38]
First we need to write the factors of the polynomial. In order for 1, 4, and -3 to be roots, they need to be the x values that make the polynomial equal 0.

(x - 1) = 0

That would be the factor for x = 1 because when we plug 1 in for x we get 1 - 1 which equals 0.

Multiply all the factors together.

(x-1)(x-4)(x+3)=0

Now FOIL.

(x^2-5x+4)(x+3)

x^3-2x^2-11x+12
5 0
4 years ago
A theater company charges $3.50 per ticket for people of all age groups. If c represents the total number of children who bought
Anna35 [415]
The answer is B 3.5(c +a)  because u solving for the total money earned and c is is representing for the company
6 0
4 years ago
Solve 3x + 23 + x = 7. x = −4 x = 4 x = −0.25 x = 0.25
Maksim231197 [3]
<h2>______________________________</h2><h2>Solve for x | Solution and Explanation </h2>

______________________________________________

Hello! So...

We are given the following:

Solve for x.

3x+23+x=7

====================

1. Group the like terms.

  • 3x+x+23=7

====================

2. Add similar elements (3x+x=4x).

  • 4x+23=7

====================

3. Subtract 23 from both sides.

  • 4x + 23 - 23 = 7 - 23

====================

4. Simplify.

  • 4x=-16

====================

5. Divide both sides by 4.

  • \frac{4x}{4} =\frac{-16}{4}

====================

6. Simplify.

  • x=-4 (aka. Option A)

====================

Hope this helps!

3 0
1 year ago
2
ohaa [14]

Answer:

the answers is (0,-4)....

8 0
3 years ago
Ahmet is twice as old as his sister Betul, and the sum of their ages is 36. How old is Ahmet?
Dovator [93]
18??
two times as old.
36 divided but 2 is 18
4 0
3 years ago
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