What is the two's complement form of -25 using 8 bits?

Answer 1

25 in Binary is 00011001, the one's complement of this is 11100110 and to find the two's complement add 1 to the one's complement as follows

11100110

00000001

________

11100111

________

Answer 2

To find the two's complement form of -25 using 8 bits, we first need to represent 25 in binary form. 25 in binary is 00011001. To get the two's complement of -25, we invert all the bits of 00011001 to get 11100110. Finally, we add 1 to the inverted binary number to get the two's complement form of -25, which is 11100111 in 8 bits.