How does this equation even work?

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1 Answer
Kristaps H.
Mar 23, 2018

Eventhough this has nothing to do with English, i'll just answer it anyways XD.
The answer is #4x^2 + 12x + 9#

Explanation:

Based on the question,
since it states the length of the square, the area of the square is basicly the length to the power of 2.
This is because a square has equal sides, therefore, the equation to expand is #(2x+3)^2#

#(2x+3)^2#
= 2x(2x+3) + 3(2x+3)
=#4x^2 +6x + 6x + 9#
=#4x^2+12x+9#
=

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