Solve (2a-b)^2 2(2a-b)-8

Evaluate

(2 a - b)^{2} \times 2 (2 a - b) - 8

Multiply

More Steps

2 (2 a - b)^{3} - 8

Simplify

More Steps

16 a^{3} - 24 a^{2} b + 12 a b^{2} - 2 b^{3} - 8

Solution

2 (8 a^{3} - 12 a^{2} b + 6 a b^{2} - b^{3} - 4)

Simplify the expression