They are -20 and +20.
The two square roots of 400 are: 20 and -20.
20 is one of the two square roots of 400.
-20 20
√0.0256 = ± 0.16 The two square roots are 0.16 and -0.16.
256 has two square roots: 16 and -16.
The square roots of 196 are 14 and -14.
The two square roots of the number, '169', are +13 and -13 .
The two square roots of 18 are: 4.242641 and -4.242641
The two square roots are +70 and -70 .
0.64 has square roots {0.8, -0.8}.
Both 9 and -9 are square roots of 81
The two square roots are -22 and +22.