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A positive number has two square roots, its principal (positive) root and its negative root. This is because a negative number multiplied by a negative number equals a positive number. In this instance, the square roots of 256 are 16 and -16.

Q: What are the two square roots of 256?

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256 has two square roots: 16 and -16.

There are no real square roots of -256. But using complex numbers the square roots of -256 are 16i and -16i.

√0.0256 = ± 0.16 The two square roots are 0.16 and -0.16.

The two square roots of the number, '169', are +13 and -13 .

The two square roots are -22 and +22.

Related questions

256 has two square roots: 16 and -16.

There are no real square roots of -256. But using complex numbers the square roots of -256 are 16i and -16i.

+/- 16

√0.0256 = ± 0.16 The two square roots are 0.16 and -0.16.

The square roots of 196 are 14 and -14.

Look for the largest square number in its factors. The square root of 512 is equal to the square root of 2 times the square root of 256. The square root of 256 is 16. The square root of 512 simplifies to 16 times the square root of 2.

The two square roots of the number, '169', are +13 and -13 .

Both 9 and -9 are square roots of 81

The two square roots are +70 and -70 .

The two square roots of 18 are: 4.242641 and -4.242641

0.64 has square roots {0.8, -0.8}.

The two square roots are -22 and +22.