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Over [174]
2 years ago
5

Help please (3x^2 + 5x - 9) + (-3x + 4)

Mathematics
2 answers:
mixas84 [53]2 years ago
4 0

Answer:

3x^2 + 2x - 5

Step-by-step explanation:

can i have a brainlest plz

emmainna [20.7K]2 years ago
4 0

Answer:

(3x^2+5x-9-3x+4)

or, 3x^2+2x-5

or, 3x^2+(5-3)x-5

or, 3x^2-3x+5x-5

or, 3x(x-1)+5(x-1)

or, (x-1) (3x+5)

hope u get it

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Which of the following best describes the relationship between (x-2) and the polynomial 2x^3+x^2-3
pantera1 [17]
If (x - 2) is a factor of 2x³ + x² - 3 then for the value of x = 2 the polynominal is equal zero.
Substitute:
2 · 2³ + 2² - 3 = 2 · 8 + 4 - 3 = 16 + 4 - 3 = 17 ≠ 0
Answer: B) (x - 2) is not a factor.

3 0
3 years ago
Distribute -2(6x^2+6)
BabaBlast [244]

Answer:

-12

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is Pythagoras Theorem ?
Nikitich [7]
Pythagoras Theorem is the way in which you can find the missing length of a right angled triangle.
The triangle has three sides, the hypotenuse (which is always the longest), Opposite (which doesn't touch the hypotenuse) and the adjacent (which is between the opposite and the hypotenuse).
Pythagoras is in the form of;
a<em><u /></em>²+b²=c²
However, it can also be written in the form of c²=a²+b²
In order to find the hypotenuse, you will have the length of two sides, for example, these could be 3 and 4.
As 'C' is always the hypotenuse, you have to work out the two other lengths, and you do this by squaring the numbers.
3²=9 and 4²=16.
As you're looking for C, you've got to add these together
9+16=25
As a²+b²=c², this means that the answer for C is the square root of 25.
√25= 5

Hope this has been able to help you :) 
5 0
3 years ago
Read 2 more answers
15 points. Attached the question<br>​
Vanyuwa [196]

Answer:

3

Step-by-step explanation:

(2x +1)/8 - (x-1)/3 = 5/24

multiple the 2x+1/8 by 3 and multiple (x-1)/3 by 8 then add them up

6x+3/24 - 8x-8/24 ➡ 6x-8x+11/24 = 5/24

➡ -2x+11 = 5

➡ -2x = 5-11

➡ x = 3

4 0
3 years ago
Someone please help me?
Harman [31]
The answer is 23 because I know this answer.
8 0
4 years ago
Read 2 more answers
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