How many solutions exist for the given equation? 3x(x - 2) = 22 - x
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From the points given we know that the rectangle is 3 points wide and 2 points tall. If we rotate it 
around the x axis then we will receive the lying cyllinder which will be 3 points tall and 2 points wide (so its radius is 2/2 = 1 point). Now we can find the surface area of the cyllinder using appropriate formula:
