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spin [16.1K]
2 years ago
13

?The side length of a square can be expressed as 2x+3. if the area of the square is 121 square meters, what is the value of x?

History
2 answers:
ElenaW [278]2 years ago
3 0
(2x+3)^2=121
2x+3=11
2x=8
x=4
FinnZ [79.3K]2 years ago
3 0

Answer:

x = 4 meters

Explanation:

The area of the square is 121 sq meters. 121 is 11 squared. The shape is a square so the side must be 11 meters.

2x + 3 = 11

2x = 8

x = 4

A longer, more complicated algebrai-ish way if to solve the equation:

(2x + 3)^2 = 121

which would give the same answer. But the shape was a square, so use that fact for a simple and elegant solution.

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