Why do square roots have more than 1 solution?

As 3 is equivalent to (-3)2 it follows that the square root of 9 must be + or -3.

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Answered by Masudul H. Maths tutor

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A cuboid has sides such that the longest side is two units more than the shortest side, and the middle length side is one unit longer than the shortest side. The total surface area of the cuboid is 52 units². What is the length of the shortest side?


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