A) 3^2 +4^2 = 5^2
3^2 +4^2 = 9 + 16 =25
5^2 = 25
25=25
б) 10^2 -6^2 > (10-6)^2
10^2-6^2 = 100-36 = 64
(10-6)^2 = 4^2 = 16
64>16
в) -2^4 < (-2)^4
-2^4 = - 16
(-2)^4 = 2^4 = 16
-16<16<br>
г) (2*3)^2 = 2^2 *3^2
(2*3)^2 = 6^2 = 36
2^2 * 3^2 = 4*9 =36
36=36