(a-b)^2 = a^2-2ab+b^2
(8-5i)^2 = 8^2-2(8)(5i)+(5i)^2
= 64-80i+25i^2
i^2=-1
So
= 64-80i+25(-1)
=64-25-80i
= <em><u>39 - 80i</u></em>
which is your answer :)
Answer:
a) In other words, the equation 3x4−8x3+2=0 has a root in [2,3]
b) x≈2.630020
Step-by-step explanation:
The value of n such that the number n and -3/4 are additive inverses is 3/4
<h3>How to determine the value of n?</h3>
The statement is given as:
The number n and -3/4 are additive inverses
The above statement means that
n = -1 * -3/4 --- by the definition of additive inverses
Next, we evaluate the product of -1 and -3/4
n = 3/4
Hence, the value of n such that the number n and -3/4 are additive inverses is 3/4
Read more about additive inverses at
brainly.com/question/1548537
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Answer:
393 bacteria
Step-by-step explanation:
First find how much it would increase per hours :
1900 / 29 = 65.5172414
Then take this and multiply it by 6 to get :
393.103448
Round it to the nearest whole number to get:
393 bacteria
