Could someone help me with the worked solution for the following question for part B and part C:

b) For the time limited digital signal: x[n]=[3,1,2,1] Write down the difference equation of the causal, minimum-delay matched filter for the signal. [6 marks] c) Calculate the output sample values from the matched filter when the signal is delivered to the input. At what instant does the peak output value occur? [8 marks]