Question

(x-1)(x2+x+1)-(x-2)(x2+2x+4)
ayuda por fa vor

Answer 1

Respuesta:

7

Explicación paso a paso:

(x - 1)(x² + x + 1) - (x - 2)(x² + 2x + 4)

=> (x)(x²) + (x)(x) + (x)(1) - (1)(x²) - (1)(x) - (1)(1) - [(x)(x²) + (x)(2x) + (x)(4) - (2)(x²) - (2)(2x) - (2)(4)

=> x³ + x² + x - x² - x -1 - [x³ + 2x² + 4x - 2x² - 4x - 8]

=> x³ - 1 - [x³ - 8] = x³- 1 - x³ + 8 = 7