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B. (6y) pngkat 3 = 216y pngkt 3
C. (a pangkt 3 + 4) kuadrat = a pngkt 6 + 24a+ 14
D. (-b kuadrat - 2b + 2) kuadrat = b2- 2b + 2)(-b2- 2b + 2) = b4 + 2b3 – 2b2 + 2b 3+ 4b2 – 4b – 2b2 – 4b + 4
= b4 + 4b3 – 4b + 4