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Rainbow [258]
2 years ago
13

What is the simplified form of this expression (-3x^2+4x)+(2x^2-x-11)

Mathematics
2 answers:
uysha [10]2 years ago
8 0

<u>Given expression:</u>

(-3x^2+4x)+(2x^2-x-11)

To simplify the expression, it is needed to open the parentheses.

\implies (-3x^2+4x)+(2x^2-x-11)

\implies -3x^2+4x+2x^2-x-11

To further simplify the expression, let us combine like terms.

\implies -3x^2+4x+2x^2-x-11

\implies x^{2} (-3 + 2)+x(4-1)-11

Now, simplify the expression as needed.

\implies x^{2} (-3 + 2)+x(4-1)-11

\implies x^{2} (-1)+x(3)-11

Finally, open the parentheses to get the simplified form

\implies x^{2} (-1)+x(3)-11

\implies \boxed{\bold{-x^{2} +3x-11}}

\text{Therefore, the simplified expression is} \ \boxed{-x^{2} +3x-11}

zlopas [31]2 years ago
5 0

Answer:

SolutioN :

\bf \: \star ( - 3x^{2}  + 4x) + (2 {x}^{2}  - x - 11)

\longrightarrow \bf \:  - 3 {x}^{2}  + 4x + 2 {x}^{2}  - x - 11

\longrightarrow \bf \:  - 3 {x}^{2}  + 2 {x}^{2}  + 4x - x - 11

\longrightarrow  \boxed{\bf \:  - {x}^{2}  + 3x - 11}

-------------HappY Learning <3 ----------

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What are the solutions to the equation<br><br>x^2+14x=-130<br><br>please do a step by step
Serjik [45]

Answer:

The answer to your question is:  x1 = - 7 + 9i      x2 = -7 - 9i

Step-by-step explanation:

                                             x² + 14x = - 130

                                            x² + 14x + (7)² = -130 + (7)²

                                           (x + 7)² = -81

                                            x + 7 = ± √-81

         i² = -1,  then                x + 7 = ±√ 81i²

                                            x + 7 = ± 9i

                          x1 = -7 + 9i                         x2 = -7 - 9i

                                             

5 0
3 years ago
There are 28 students in 4th grade class. Each table in the classroom seats 8 students. How many tables will be needed to seat a
tresset_1 [31]

Answer: 4 tables

Step-by-step explanation:

3 tables wouldn't be enough because there would only be 24 seats. 4 tables would have 32 seats (so a little extra).

7 0
3 years ago
Read 2 more answers
What is the product of 532.6 x 8.53?
Eduardwww [97]
The answer will be 4543.078

Hope this helps:)
3 0
3 years ago
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a cleaning service charges an hourly rate plus a flat fee of $15 for supplies. philip uses the service for 3.5 hours for his spr
Sergeu [11.5K]

Using linear function concepts, it is found that he can correctly determine the hourly rate as follows:

subtract the supply fee, 15 dollars from the total cost, then, divide the difference by the number of hours.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, which can also be interpreted as the initial value of a function that is valid only for x \geq 0, such as is the case in this problem.

The flat fee is of $15, hence b = 15, then:

y = mx + 15

Philip uses the service for 3.5 hours for his spring cleaning, and his total is $232, hence when x = 3.5, y = 232, so we use it to find the hourly rate m.

y = mx + 15

232 = 3.5m + 15

m = \frac{232 - 15}{3.5}

Hence, the correct option is:

subtract the supply fee, 15 dollars from the total cost, then, divide the difference by the number of hours.

You can learn more about linear function concepts at brainly.com/question/24808124

7 0
2 years ago
100 points
dusya [7]
A. This expression has 4 terms
B. The constants are -5, 3, 72 and 10
C. The third term is 72
D. The coefficient is y
3 0
2 years ago
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