Penjelasan dengan langkah-langkah:
a. 4a + 5b - 8a - 8b =
4a - 8a + 5b - 8b =
-4a + -3b
b. 2(2b-4c) -5(3b+2c) =
4b - 8c -15b + -10c =
4b - 15b - 8c + -10c =
-11b - 18
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Penjelasan dengan langkah-langkah:
a. 4a + 5b - 8a - 8b =
4a - 8a + 5b - 8b =
-4a + -3b
b. 2(2b-4c) -5(3b+2c) =
4b - 8c -15b + -10c =
4b - 15b - 8c + -10c =
-11b - 18
maaf kalo salah