make x the subject of the following x^2 + 3 = h

Answer 1

To make \( x \) the subject of the equation \( x^2 + 3 = h \), follow these steps:

1. Subtract 3 from both sides: \[ x^2 = h - 3 \]

2. Take the square root of both sides. Remember to consider both the positive and negative square roots: \[ x = \pm \sqrt{h - 3} \]

So, \( x = \sqrt{h - 3} \) or \( x = -\sqrt{h - 3} \).