Question

y^2+2=x^2+4 here can we take lhs as f(x)​

Answer 1

Answer:

No you can not take LHS as f(x) as it is.

Step-by-step explanation:

For LHS to be f(x), it should be in terms of only y of degree 1

You can write the equation as

$y \: = \: \sqrt{x {}^{2} + 2}$

Hence,

$f(x) = \sqrt{x {}^{2} + 2}$