2 years ago

The area of a square is 16 square units. Since 42 = 16 and (-4)2 = 16, both 4 and -4

2 answers:

3 0

It is true that (-4)^2 = 16; however, it doesn't make sense to have a square with a negative side lengths. Lengths and distances must be positive numbers.

So in many problems, we'll just ignore the negative solution to equations like x^2 = 16. It makes sense to only consider x = 4 for situations like this.

Vikentia [17]2 years ago

3 0

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