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VARVARA [1.3K]
3 years ago
14

Since A =

e" class="latex-formula"> - 1 and B = x^{3} - x + 1, compute the opposite of the polynomials:
a) A + B
b) A - B
c) (-A) - B

PLEASE ACCOUNT!
Mathematics
1 answer:
ziro4ka [17]3 years ago
8 0
The answer is correctly b
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May I know the values of x and y of the following equation?<br>(5-3i)(x-yi) = 3(x+2yi)+1-2i​
gogolik [260]

Answer:

  (x, y) = (17/31, 1/31)

Step-by-step explanation:

Simplify the given equation, then equate real parts and equate imaginary parts. This will give you two equations in the two unknowns.

__

<h3>simplify</h3>

  (5 -3i)(x -yi) = 3(x +2yi) +1 -2i

 5x -5yi -3xi +3yi² = 3x +6yi +1 -2i

  (5x -3y) +i(-5y -3x) = (3x +1) +i(6y -2)

<h3>equate real, imaginary parts</h3>

This resolves to the two equations ...

  • 5x -3y = 3x +1
  • -5y -3x = 6y -2
<h3>solve the system</h3>

Putting these equations into general form gives ...

  2x -3y -1 = 0

  3x +11y -2 = 0

Using the "cross multiplication method" to solve these equations, we get ...

  x = ((-3)(-2) -(11)(-1))/(2(11) -3(-3)) = 17/31

  y = ((-1)(3) -(-2)(2))/31 = 1/31

The values of x and y that satisfy this equation are ...

  (x, y) = (17/31, 1/31)

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You can read more about the cross multiplication method here.

brainly.com/question/26397343

3 0
2 years ago
PLEASE HELP FAST URGENT!!!
Sedbober [7]

Answer:

A= Origen C= q1 B=Q2

Step-by-step explanation

your left-hand side is quadrant <u>TWO</u> Your top right-hand corner is Quadrant <u>ONE</u> and your second to the last one is left-hand side down Is Quadrant <u>THREE</u> last but not least is Quadrant <u>FOUR. </u> And the zero in the middle means <u><em>ORIGEN. </em></u>

6 0
2 years ago
Can someone please help !!!
Alina [70]
The answer is -8.
Solving it
5 0
3 years ago
Read 2 more answers
(–6) + (–4) – (3) help help help meeeee
tia_tia [17]

Answer:

–13

Step-by-step explanation:

(–6) + (–4) – (3)

Remove the brackets.

–6 + –4 – 3

= –13

Found by a calculator.

3 0
3 years ago
What is the answer to the problem
Ber [7]
The answer is A. Good luck
7 0
2 years ago
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