Question

E (x) =
$( \frac{1}{x + 2} - \frac{1}{x + 4} ) \div ( \frac{1}{x + 4} + \frac{1}{x + 2} )$
a) Arătați ca E (x) = 1 /x+3 ​

Answer 1

1-1%58*92&27#2771%%2+6+6+8+5+94+