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aleksandrvk [35]
3 years ago
5

How do I simplify (-4x^2+2x-3)+(7-2x^2+x)???

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
4 0

Answer: -6x^2 + 3x + 4

Step-by-step explanation:

You might be interested in
Find all real solutions and show work: <br> 2x^3-3x^2+18x-27=0
Amiraneli [1.4K]

Given:

The given equation is

2x^3-3x^2+18x-27=0

To find:

All the real solutions.

Solution:

We have,

2x^3-3x^2+18x-27=0

It can be written as

x^2(2x-3)+9(2x-3)=0

(2x-3)(x^2+9)=0

Using zero product property, we get

(2x-3)=0 and (x^2+9)=0

2x=3 and x^2=-9

x=\dfrac{3}{2} and x=\pm\sqrt{-9}

We know that x=\pm\sqrt{-9} is an imaginary number because there is a negative sign under the square root.

Therefore, x=\dfrac{3}{2} is the only real solution of the given equation.

5 0
3 years ago
Factor completely: −2x3 + 6x2
Pavel [41]
Correct answer is C.

-2x^3+6x^2  \\-2x^2x+2x^23 \\2x^2(-x+3) \\2x^2(-(x-3)) \\-2x^2(x-3)
4 0
3 years ago
Help me please I beg if you can
Virty [35]

Answer: The mean is 3780

Step-by-step explanation:

Mean is found by adding all values and dividing the sum by how many values were added.

4250+4019+3895+3739+3401+3376=22680
22680/6=3780

6 0
3 years ago
The school that Emily goes to is selling tickets to the annual dance competition.
Vilka [71]

Answer:

price for senior citizen is $11

price for child ticket is $8

4 0
3 years ago
What is 3(x+2)-10=4x-6+x <br>​
Natalija [7]

Answer:

1=x or x=1

Step-by-step explanation:

3(x+2)-10=4x-6+x

distribute

3x+6-10=4x-6+x

combine like terms

3x-4=5x-6

subtract 3x from each side

-4=2x-6

add 6 to both sides

2=2x

divide by 2

1=x or x=1

8 0
3 years ago
Read 2 more answers
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