2x³-13x²+17x+12 at x= -3 and x= 2
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Step-by-step explanation:
At x = -3
2x³-13x²+17x+12
= 2(-3)³ - 13(-3)² + 17(-3) + 12
= 2(-27) -13(9) - 51 + 12
= - 54 - 117 - 51 + 12
= - 210
At x = 2
2x³-13x²+17x+12
= 2(2)³ - 13(2)² + 17(2) + 12
= 2(8) - 13(4) + 34 + 12
= 16 - 52 + 34 + 12
= 10
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