142,095 views
31 votes
31 votes
The length of a side of a square is (2x + 9) km. Find the area of the square in terms of the variable x.

User Ritik Banger
by
3.1k points

1 Answer

23 votes
23 votes
(2x + 9)^2
= 2x(2x + 9) + 9(2x + 9)
= 4x^2 + 36x + 81

User Daniel Al Mouiee
by
2.8k points
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