Question

Resolva as operações com polinômios

a) ( 12x^3 - 7x+ 2) + (3x^2 + 7x - 2 )

b) (7x^2 -6x + 3) - ( 7x^2 - 3)

C) ( 7x^3 - 6x^2 - 8x) - ( 7x^3 - 6x^2 - 8x)​

Answer 1

a)

$12x {}^{3} - 7x + 2 + 3x {}^{2} + 7x - 2 \\ 12x {}^{3} + 3x {}^{2}$

b)

$7x {}^{2} - 6x + 3 - 7x {}^{2} + 3 \\ - 6x + 6$

c)

$0$