Answer:
square shaped
Step-by-step explanation:
Since, the shape of a cross section is perpendicular to the base of a cube.
Therefore, the shape of the cross section would be square shaped.
I have done what you want
(3x⁷)⁴ = 3⁴x²⁸ = 81x²⁸
because (3x⁷)⁴ = cx^n
=> c = 81
n = 28
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4 min
if you look at the plot the dot is a 4
