If the two square roots of a number are 10 units apart on the axis, then the number is zero

twenty-five
Because non negative numbers have square roots, those with two square roots can only be positive numbers, and the two square roots of positive numbers are opposite to each other
This positive number is 25, its square roots are 5 and - 5, 5 and - 5 are 10 length units apart on the number axis

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