Question

solve t/2-2/t=0

Answer 1

The common denominator is 2t, so multiply the first equation by t/t and the second by 2/2 and you get
\[t^2/2t-4/2t=0\]
\[(t^2-4)/2t=0\]
Now if we multiply both sides by 2t we see that the right side is still 0.
\[t^2-4=0\]
So solving the quadratic formula gives,
t=2, -2