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Nadya [2.5K]
3 years ago
11

-3(2x-3)= -5x+5 show your work

Mathematics
2 answers:
murzikaleks [220]3 years ago
8 0

Answer:

x=4

Step-by-step explanation:

Hope this helps!

Plz, mark brainiest! ^.^

sergejj [24]3 years ago
8 0

Answer:

x = 4

Step-by-step explanation:

Use the distributive property to distribute the -3 amongst the 2x and the -3 in the parenthesis. Once distributed you should have -6x + 9 = -5x + 5. Next, you want to get all like terms on the same side, and to do that you must swap the +9 and the -5x. When you swap these, you must 'flip' the sign and change 9 to -9 and -5x to 5x. Now the equation should look like this: -6x + 5x = -9 + 5.

Now just solve. After solving, it should look like this: -1x = -4. Now to get rid of the negatives. Just divide each side by negative one and your answer is x = 4.

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Divide 6x^6+5x^5+2x^4-9x^3+7x^2-10x+2 by 3x + 1 by using long division. Show all work and steps work. Then explain if 3x + 1 is
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Answer:

<span>1)   
</span>

<span>  Quotient: 2x⁵ + x⁴ + (1/3)x³ -(28/9)x² + (91/27)x – (361/81)</span>

<span>  Remainder: 523/81</span>

<span>2) Since the division is not exact (remainder 523/81) the factor 3x + 1 (the divisor) is not a factor.

Explanation (Long division):

1)

6x⁶ + 5x⁵ + 2x⁴ - 9x³ + 7x² - 10x + 2  | 3x + 1
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2)

</span><span>  6x⁶ + 5x⁵ + 2x⁴ - 9x³ + 7x² - 10x + 2  | 3x + 1
                                                           --------------------------------------------
-6x⁶ - 2x⁵                                               2x⁵
-------------------------------------------------
          3x⁵ + 2x⁴ - 9x³ + 7x² - 10x + 2

3)

</span><span>  6x⁶ + 5x⁵ + 2x⁴ - 9x³ + 7x² - 10x + 2  | 3x + 1
                                                           --------------------------------------------
-6x⁶ - 2x⁵                                               2x⁵ + x⁴
-------------------------------------------------
          3x⁵ + 2x⁴ - 9x³ + 7x² - 10x + 2


</span>4)  <span>

 6x⁶ + 5x⁵ + 2x⁴ - 9x³ + 7x² - 10x + 2  | 3x + 1
                                                           --------------------
-6x⁶ - 2x⁵                                               2x⁵ + x⁴
-------------------------------------------------
          3x⁵ + 2x⁴ - 9x³ + 7x² - 10x + 2
        - 3x⁵ - x⁴
--------------------------------------------------
                 2x⁴ - 9x³ + 7x² - 10x + 2
</span><span>

</span><span>Since the number of characters to show here is limited, I continue with this division is a separate file.

Please, open the attached pdf file. There you have the entire division.

Remember that if 3x + 1 were a factor the division would be exact. So, since the division is not exact 3x + 1 is not a factor.
</span>
Download pdf
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Answer:

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-2,122 + 5 = -2,117

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