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a) 3(5)³ + 4(5)² - 17(5) - 6
3(125) + 4(25) -17(5) - 6
375 + 100 - 85 - 6 = 384
b) 3(3)³ + 4(3)² - 17(3) - 6
3(27) + 4(9) -17(3) - 6
81 + 36 - 51 - 6 = 60
b) 3(4)³ + 4(4)² - 17(4) - 6
3(64) + 4(16) -17(4) - 6
192 + 64 - 68 - 6 = 182