Question

Procedimiento
15(t+1)2+5(t+1)-t-1

Answer 1

$15(t+1) ^{2} +5(t+1) - t-1$

$15(t+1) ^{2} +5(t+1) - (t+1 )$

(t+1)[(15(t+1) + 5 - 1 ]

(t+1)[(15t+15 + 4 ]

(t+1)[(15t+19 ]