Need some help with this problem, thank you

Let P = Complete parts (a) and (b). a. Find a basis fu, , U2, U3 ) for R such that P is the change-of-coordinates matrix from fu1 , u2, u3} to the basis {V1, V2, V3}- [Hint: What do the columns of P represent?] C - B uq = . U2 =], U3 = [ b. Find a basis {W1, W2, W3 ) for R such that P is the change-of-coordinates matrix from {v1, V2, V3} to {w1 , W2. wa} W 1 = , W 2 = . W3 = 0