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Verified answer
(a - b)⁴ = a⁴ - 4a³b + 6a²b² - 4ab³ + b⁴(a - b)⁴ = a⁴ + p a³b + q a²b² + r ab³ + b⁴
Perhatikan ksamaan tempatnya
p = -4
q = 6
3p - 2q = 3(-4) - 2(6) = -12 - 12 = -24