Question Simplify the expression x3y3−6x2y2z+12xyz2−8z3 Evaluate (xy−2z)3Use (a−b)3=a3−3a2b+3ab2−b3 to expand the expression (xy)3−3(xy)2×2z+3xy(2z)2−(2z)3Solution x3y3−6x2y2z+12xyz2−8z3 Show Solution