How would you input this into MATLAB?

)A causal LTID system is described by the second-order discrete-time system as, y[n] 0.8xln - 1]+ 0.12y[n - 2]-x[n a. Use the method described in section M3.2 to compute the impulse response through b. Use Matlab function impz) to compute impulse response for the system, h[n], for n- filtering for n (0:25). (0:25). Plot h[n]. Did you get the same result as that in (a)? Plot h[n], and the difference between h[n]'s in part (a) and part (b). Suppose the input for the system is c. x[n] = u[n]-w-15] with initial condition M-11-M-21-2, compute the zero-input response,ki, the zero-state response, Vx and the total response, y[n )A causal LTID system is described by the second-order discrete-time system as, y[n] 0.8xln - 1]+ 0.12y[n - 2]-x[n a. Use the method described in section M3.2 to compute the impulse response through b. Use Matlab function impz) to compute impulse response for the system, h[n], for n- filtering for n (0:25). (0:25). Plot h[n]. Did you get the same result as that in (a)? Plot h[n], and the difference between h[n]'s in part (a) and part (b). Suppose the input for the system is c. x[n] = u[n]-w-15] with initial condition M-11-M-21-2, compute the zero-input response,ki, the zero-state response, Vx and the total response, y[n