Question

(x²+x-1)(x²-x) ayuda​

Answer 1

(x² + x - 1) (x² - x) =

x² × (x² - 1) + c × (x² - x) - 1 (x² - x)

x² × (x² - x)

x² × x² - x² × x

x⁴ - x² × x

x⁴ - x³

x × (x² - x)

x × x² - x × x

x³ - x × x

x³ - x²

- 1 (x² - x)

- x² - 1 × (- x)

- x² + 1x

- x² + x

x⁴ - x³ + x³ - x² - x² + x

x⁴ - x² - x² + x

- x² - x²

- 1x² - x²

- 1x² - 1x²

( - 1 - 1)x²

- 2x²

= x⁴ - 2x² + x