A
(X-7)(x-4) -> x^2 -11x + 28
Multiply that by the 2 and you get the original equation!
Answer:

Step-by-step explanation:
Please see attached picture for full solution.
The value of x is 8 from the diagram given.
<h3>How do you calculate the sides of similar triangles?</h3>
The corresponding sides of a similar triangle are said to be in proportion if and only if the corresponding angle are also equal.
To calculate the side of line x (|x|), we have to determine the ratios of the corresponding sides as:


x = 120/15
x = 8
Therefore, we can conclude that the value of x is 8.
Learn more about calculating similar triangles here:
brainly.com/question/11899908
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Answer:
the answer is 31 that the costumers regularly buy that's why it left 20