Question

Ayuda el 52. Doy corona y 88 puntos

Answer 1

A = -2x³ + 2x²- 2x - 3

B = 2x³ - 5x + 2

C = -x³ +2x² + 1

A + B + C

-2x³ + 2x²- 2x - 3 + 2x³ - 5x + 2 + ( -x³ +2x² + 1 )

-2x³ + 2x²- 2x - 3 + 2x³ - 5x + 2  - x³ + 2x² + 1

2x³- 2x³ - x³ + 2x² + 2x² - 2x - 5x - 3 + 2 + 1

-x³ + 4x²- 7x - 3 + 3

-x³ + 4x²- 7x

- A - B + C

- (-2x³ + 2x²- 2x - 3) - ( 2x³ - 5x + 2 ) + (-x³ +2x² + 1)

+ 2x³ - 2x² + 2x  + 3 - 2x³  + 5x  - 2  -x³ + 2x² + 1

2x³- 2x³ - x³ - 2x² + 2x² + 2x + 5x + 3 + 1 - 2

- x³ + 7x + 2

2A + B - C

2(-2x³ + 2x²- 2x - 3) + 2x³ - 5x + 2 - ( -x³ +2x² + 1 )

-4x³ + 4x²- 4x - 6  + 2x³ - 5x + 2 + x³  - 2x² - 1

-4x³ + 2x³ + x³ + 4x² - 2x² - 4x - 5x - 6 - 1 + 2

-x³ + 2x² - 9x - 5

Eternamente axllxa