Please Solve in Matlab and explain code Using the builtin fu

Please Solve in Matlab and explain code

Using the built-in function fft() and ifft() to compute the following convolution:

y[n] = x₁[n]*x₂[n]

where x₁[n] = u[n] – u[n-6] and x₂[n] = u[n] – u[n-8].

Solution

x1= [1 1 1 1 1 1 1 0 0]; x2= [1 1 1 1 1 1 1 1 1]; con= ifft(fft(x1).*fft(x2))