Question

2a(a square+b square)-2b square (b+a)+2

Answer 1

2a(a²+b²) - 2b² (b+a)+2

2a³ + 2ab² - 2b³ -2ab² + 2

2a³ - 2b³ + 2 or 2(a² - b² + 1)

Answer 2

Answer:

$2a( {a}^{2} + {b}^{2} ) - 2 {b}^{2}(b + a) + 2 \\ \\ = 2 {a}^{3} + 2a {b}^{2} - 2 {b}^{3} - 2a {b}^{2} + 2 \\ \\ = 2 {a}^{3} - 2 {b}^{3} + 2 \\ \\ = 2( {a}^{3} - {b}^{3} + 1)$