Find the Value of 3x3 – 4x2 + 5x – 6, When X = − 1.

Find the value of 3x³ – 4x² + 5x – 6, when x = − 1.

Sum

3x³ – 4x² + 5x – 6

= 3(− 1)³− 4(− 1)² + 5(− 1) − 6

= 3 × − 1 − 4 × 1 − 5 − 6

= − 3 − 4 − 5 − 6

= − 18

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