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Q: Real square roots of -196

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14i

14 x 14 = 196 -14 x -14 = 196

They are +14 and -14

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

There are two roots, both real: -13 and +13

Related questions

14i

The square roots of 196 are 14 and -14.

14 x 14 = 196 -14 x -14 = 196

They are +14 and -14

It is plus or minus 14 because 14*14 = 196 or -14*-14 = 196

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

0.0625 has a grand total of 2 square roots, and they're both real. They are +0.25 and -0.25

There are two roots, both real: -13 and +13

The square roots of any positive real number are a positive and a negative real number. The square roots of any negative real number are a positive and a negative imaginary number. The square roots of any imaginary number or any complex number are two complex numbers.

169 and 196 are perfect squares. Their square roots are 13 and 14 respectively. The perfect squares from 1^2 to 16^2 are: 1,4, 9, 16, 25, 36, 49, 64, 81, 100, 144, 169, 196, 225, 256. It is useful to memorize the perfect squares, as it makes estimating square roots easier. In case you wanted to find the square root of 169,196, the answer is roughly 411.334414... The square roots of integers which are not perfect squares are irrational, so they can not be expressed exactly as a sequence of digits.

They are called real numbers. Negative square roots must be complex numbers.

The two square roots of 400 are: 20 and -20.