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h. (3a - 2)^5 = (3a)^5 + 5(3a)^4(-2) + 10(3a)^3(-2)^2 + 10(3a)^2(-2)^3 + 5(3a)(-2)^4 + (-2)^5 = 243a^5 - 810a^4 + 1080a^3 - 720a^2 +240a - 32
Soal-soal yang lain coba dikerjakan sendiri ya.
Semangat!