Question

alguem pode me ajudar????​

Answer 1

Resposta:

A= 1/x²-1= X=-1

B=3/2x-2= X=3

C= 3/3x+3= 3/6x = x=6/3= X=2

a) A+B-C=  -1+3-2= 0

b) A-B+C= -1-3+2 = -2

c) A-B-C= -1-3-2= 6

d) C-B-A= 2-3-(-1)= -2