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slamgirl [31]
3 years ago
9

*****Write a polynomial using the roots -3,5i. PLEASE HELP IM SO LOST!!!

Mathematics
1 answer:
Vladimir79 [104]3 years ago
8 0
The polynomial (x-a) has a unique root, a, for any a.

Hence (x+3)(x-5i) is a polynomial with roots -3 and 5i
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8x^3-8x=1<br> Solve for x
Anit [1.1K]

Step-by-step explanation:

Step-by-step explanation:

\begin{gathered} \frac{8x - 3}{3x} = 2 \\ 8x - 3 = 6x \\ 8x - 6x = 3 \\ 2x = 3 \\ x = \frac{3}{2} \end{gathered}

3x

8x−3

=2

8x−3=6x

8x−6x=3

2x=3

x=

2

3

4 0
2 years ago
HEY, I NEED HELP. QUICK. IM GETTING GROUNDED IF I DONT GET THIS DONE,,,, CHECKING IN ON YOU, HOW ARE YOU? HAVE YOU DRANK WATER?
larisa [96]

Answer:

0, -2 i think :p

Step-by-step explanation:

Because i say so

4 0
3 years ago
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Solve for x to the nearest tenth...please help me lol
sleet_krkn [62]

Answer:

<h2><u>x = 8.2</u></h2>

Step-by-step explanation:

A^2+B^2=C^2 is the pythagorean theorem to find a missing siede of a triangle.

First triangle on the right:

5^2+B^2=10^2

25+B^2=100

B^2=75

B=8.66025404

B=8.7

Second triangle of left:

3^2+B^2=8.7^2

9+B^2=75.69

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B= 8.16639455

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x=8.2

3 0
2 years ago
-k(-4k^2+k+2) Best one and simplest one gets the brainliest, I'm In a rush.
sasho [114]

Answer:

4k^3 - k^2 - 2k

Step-by-step explanation:

-k * -4k^2 = 4k^3

-k * k = -k^2

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4k^3 - k^2 - 2k

4 0
3 years ago
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Given figure LMNO ~ figure STUV, what is the value of x? LMNO has 4.1 in and 22. in and STUV has 12.3 in
Furkat [3]
Set up a proportion:

4.1/22 = 12.3/x

Cross multiply:

4.1 * x = 22 * 12.3

4.1x = 270.6

Divide 4.1 to both sides:

x = 66
7 0
3 years ago
Read 2 more answers
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