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Radda [10]
3 years ago
13

Just say 1,2,3,4,5,6 or 7 and there are more than 1 answer WORTH 90 POINTS!! HELP ME​

Mathematics
1 answer:
alisha [4.7K]3 years ago
7 0
Yo bro i got to add words but the answer is 2
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(x 4 - 81) (x - 3) . write answers in descending power of x. (division)
Zinaida [17]

Answer:

  x^3+3x^2+9x+27

Step-by-step explanation:

\dfrac{x^4-81}{x-3}=\dfrac{(x^2-9)(x^2+9)}{x-3}=\dfrac{(x-3)(x+3)(x^2+9)}{(x-3)}\\\\=(x+3)(x^2+9)=x^3+3x^2+9x+27

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The factoring of the difference of squares is used (twice):

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4 0
3 years ago
Find the value of x 5x-2(x+5)
vesna_86 [32]

Answer:

x=9

Step-by-step explanation:

6 0
3 years ago
I really need an a answer again Srry for wasting ur time... but I need an answer quick
defon

Answer:

400m

7000000km

25000m

Step-by-step explanation:

Meter to Kilometer is x1000

kilometer to meter is ÷1000

5 0
3 years ago
P is the midpoint of DE¯¯¯¯¯ , DP=3x+2, and PE=5x−6.<br><br> What is the length of DE¯¯¯¯¯ ?
frosja888 [35]
The answer is 28 (I took the quiz in k12) :)
3 0
3 years ago
What is y=3x squared in standard form so I can graph it as a quadratic function
maria [59]

the standard form of a quadratic is simply the equation with all variables and constant on the left-hand-side.


y = 3x² <--- general form

-3x² + y = 0 <--- standard form.

4 0
3 years ago
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