Question

calcule

(3x²-2x-2)+(x²+1)+(x+1) =​

Answer 1

$3x {}^{2} - 2x - 2 + x {}^{2} + 1 + x + 1 \\ 4x {}^{2} - x + 0 \\ 4x {}^{2} - x$

Answer 2

(3x²-2x-2)+(x²+1)+(x+1) =​

Explicação passo-a-passo:

3x^2 + x^2 = 4x^2

-2x + x = -x

-2 + 1 + 1 = 0

fica

4x^2  - x