Q4) [15 points] Design a circuit which has as an input W[3:0] and output X[9:0] where both are treated as 2's complement numbers. X should be equal to 6 times W's value. You may only use one 8-bit adder (with carry in and carry out) 8-bit adder A7 A6 A5 454 S7 S6 S5 S4 S3 S2 A1 A0 B7 B6 B5 B4 B3 82 B1 ?? So Cout Cin Q4) [15 points] Design a circuit which has as an input W[3:0] and output X[9:0] where both are treated as 2's complement numbers. X should be equal to 6 times W's value. You may only use one 8-bit adder (with carry in and carry out) 8-bit adder A7 A6 A5 454 S7 S6 S5 S4 S3 S2 A1 A0 B7 B6 B5 B4 B3 82 B1 ?? So Cout Cin