Question

Determine o valor numérico de

Answer 1

${x}^{3} - {3x}^{2} - 8x - 7 = \\ {2}^{2} - {6}^{2} - (8 \times 2) - 7 = \\ {2}^{2} - {6}^{2} - 16 - 7 = \\ 4 - 36 - 16 - 7 = \\ - 32 - 9 = \\ - 41$