Answer
(a) The row vectors are
$$u_1=(0,2,-3), \quad u_2=(3,1,0), \quad u_3=(-2,-1,2).$$
(b) The row vectors are
$$ v_1=(0,3,-2),\quad v_2=(2,-1,1), \quad v_3=(-3,0,2).$$
Work Step by Step
(a) The row vectors are
$$u_1=(0,2,-3), \quad u_2=(3,1,0), \quad u_3=(-2,-1,2).$$
(b) The row vectors are
$$ v_1=(0,3,-2), \quad v_2=(2,-1,1), \quad v_3=(-3,0,2).$$