Question

Solve y=x^2+23 for x

Answer 1

For this case we must clear x from the given equation:

$y = x ^ 2 + 23$

We passed 23 subtracting the other side of equality:

$y-23 = x ^ 2$

By definition, $a ^ 2 = b$is written as $a = +/-\sqrt{b}$

So, we have:

$x = + / -\sqrt{(y-23)$

So, the solution of $y = x ^ 2 + 23$ for x is:

$x = + / -\sqrt{(y-23)$

Answer:

$x = + / -\sqrt{(y-23)$

$x1=+\sqrt{(y-23)$

$x2=-\sqrt{(y-23)$