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Liula [17]
3 years ago
13

Determine the values for k and w (x+k) (x-4)=

{2}" alt="x^{2}" align="absmiddle" class="latex-formula"> - 9x+20
Mathematics
1 answer:
Taya2010 [7]3 years ago
7 0

by expanding

-4k = 20

k = -5

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hello,

i advice you check the question again if it is GF(2^{4}) or GF(24). i believe the question should rather be in this form;

multiplication in GF(2^{4}): Compute A(x)B(x) mod P(x) = x^{4} + x+1, where A(x)=x^{2}+1, and B(x)=x^{3} + x+1.

i will solve the above question and i believe with this you will be able to solve any related problem.

A(x)B(x)=(x^{2} +1) (x^{3}+x+1) mod (x^{4}+x+1  ) = (x^{5} +x^{3}+x^{2}  ) + (x^{3}+x+1  ) mod (x^{4} + x+1 )

= x^{5}+2x^{3} +x^{2}  + x + 1 mod(x^{4}+x+1  )

=2x^{2} +1

please note that the division by the modulus above we used

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3 years ago
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svetoff [14.1K]

Answer: its 49

Step-by-step explanation:

8 0
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