Question

if f(x)=3/x+2-√x-3. my last three classes are math and I'm dislexic I need help I'm reading things wrong

Answer 1

$f(x)=\dfrac3{x+2}-\sqrt{x-3}$

Two immediate observations:

(1) Clearly, we can't have $x=-2$, since that would make both the rational and the square root terms undefined.

(2) If $x$ is real, then $\sqrt x$ only exists if $x\ge0$. This means that for $\sqrt{x-3}$ to exist, we require $x-3\ge0\implies x\ge3$.

If $x\ge3$, then we don't have to worry about $x$ ever taking on a value of -2.