Question

(3x − 2)²-2-(X-4) + (2x²-1) (2x+1)​

Answer 1

Ответ:

(3x - 2)2-2-(X-4) + (2x2-1) (2x+1) = (x - 1)2

Объяснение:

(3x - 2)2

= (3x - 2)(3x - 2)

= 9x2 - 6x - 2x + 4

-2(x - 4)

= -2x + 8

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

= 4x3 + 2x2 - 2x - 1

9x2 - 6x - 2x + 4 -2x + 8 + 4x3 + 2x2 - 2x - 1

= 4x3 + 11x2 - 6x + 11

4x3 + 11x2 - 6x + 11

= (x - 1)2