Question

Please jawab. butuh banget !!!!
1. -9a + 6b - 7c + 9a - 7c + 6b ...?
2. 3x + 5y - 8z - 12x - 4z ....?
3. 6p² - 5p + 3 – 7p² - 8p + 18 ...?

Answer 1

Langsung jawaban y
1) -9a + 9a + 6b + 6b - 7c - 7c
   =12b - 14c
2) 3x -12x +5y - 8z - 4z
   = -9x + 5y - 12z
3) 6p² - 7p² - 5p - 8p +3 + 18
  = -p² - 13p +21
maaf kalo salah

Answer 2

1. -9a + 6b - 7c + 9a - 7c + 6b
= -9a + 9a + 6b + 6b - 7c - 7c
= 12b - 14c

2. 3x + 5y - 8z - 12x - 4z
= 3x - 12x + 5y - 8z - 4z
= -9x + 5y - 12z

3. 6p² - 5p + 3 - 7p² - 8p + 18
= 6p² - 7p² - 5p - 8p + 3 + 18
= -p² - 13p + 21

Semoga membantu :)