complex number

{ 1 - w + w ² } ⁵ = { 1 + w + w ² - 2 w } ⁵ = { - 2 w } ⁵ = - 32 w ²

{ 1 + w - w ² } = { 1 + w + w ² - 2 w ² } = - 2 w ²

Adding them up gives ---------------- { - 34 w ² }

Similarly , for the second one , the expression boils down to -

{ - 2 w } { 2 - w ² } = - 4 w + 2

its fine but the ans are not these. for frist one the ans is -128W nd 2nd one is 32. can't understand how ??