72 = x2 + x2
x = 6
x2 = 36
36+36=72
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Natural numbers are those numbers used for counting. The square root of 14 is the irrational number 3.74165... . Therefore, the square root of 14 is not a natural number.
Oh, what a happy little math question we have here! Let's see, if we take the square root of 51, we find that it's between the square numbers 7 and 8. The square of 8 is 64, and the square of 7 is 49. So, the square numbers that have a difference of 51 are 64 and 49.
They are: 100-64 = 36
The sum, or difference, of two irrational numbers can be rational, or irrational. For example, if A = square root of 2 and B = square root of 3, both the sum and difference are irrational. If A = (1 + square root of 2), and B = square root of 2, then, while both are irrational, the difference (equal to 1) is rational.
The square root of 121 is rational, an integer, and a natural number.