Jawapan

  • Pengguna Brainly
2016-01-17T23:32:12+08:00
( w+3 ) ( w+4 ) = 0
w^2 + 4w + 3w + 12 = 0
w^2 + 7w + 12 = 0
( w + 3 ) ( w + 4 ) = 0
w = - 3 , w = - 4
1 5 1
2016-01-18T01:47:31+08:00
(w + 3)(w + 4)

= w^2 + 4w + 3w + 12

= w^2 + 7w + 12