Question

No 2 dan 3 tolong dijawab ya
Nilai nya banyak lo

Answer 1

2).a. (-3m + 4n -6) + (7n - 8m + 10)
= -3m - 8m + 4n + 7n -6 + 10
= -11m + 11n +5

b. (15a + 7b - 5c) + (-11a -12b + 13d)
= 15a - 11a + 7b - 12b -5c + 13d
= 4a - 5b - 5c + 13d

3.) a. (-3m + 4n -6) - (7n - 8m + 10)
= -3m + 4n -6 - 7n + 8m + 10
= -3m + 8m + 4n - 7n -6 + 10
= 5m -3n + 4

b. (15a + 7b - 5c) - (-11a -12b + 13d)
= 15a + 7b -5c +11a + 12b -13d
= 15a + 11a + 7b + 12b -5c -13d
= 26a + 19b -5c - 13d

"maaf kalau salah"