Answer Happy

I need help to solve this step by step, and to know itsgraphical convolution
2.30. Compute the convolution x(t)*v(t) for − ∞ < t < ∞, where x(t) = u(t) + u(t − 1) – 2u(t - 2) and v(t) = 2u(t + 1) − u(t) — u(t − 1).