Question

Fatore por agrupamento
2b² + 2 - b² k - k

Answer 1

( 2b²+2)- (b²k+k)
2(b²+1)- k(b²+k)
(2-K).(b²+1)

Answer 2

2b² + 2 - b² k - k
2 . (b² + 1) - k . (b² + 1) 
(b² + 1) . (2 - k)

Resposta: (b² + 1) . (2 - k).
Bons estudos!