Question

Se A=1/x+1 e B= x/x²-x qual o valor de

*A+A
*B+B
Me ajudem por favor!!!

Answer 1

A+A
1/x+1 + 1/x+1
(1(x+1) + 1(x+1)) / (x+1)(x+1)
(2x+2) / (x^2+2x+1)

B+B
x/x²-x + x/x²-x
x(x²-x) + x(x²-x)) / (x²-x).(x²-x)
(2x³-2x²)/(x^4-2x³+x²)