Question

${Question}$
$\sqrt{ u {}^{2} }+2ax \\ make \: x \: subject$
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Answer 1

Answer:

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Answer 2

$Given \: r = \sqrt{ u {}^{2} }+2ax \\ Take \: square \: on \: both \: sides \\ r {}^{2} = (\sqrt{ u {}^{2} }+2ax ) {}^{2} \\ r {}^{2} = (\sqrt{ u {}^{2} }+2ax ) \\ u {}^{2} + 2ax = r {}^{2} \\ 2ax = r {}^{2} - u {}^{2} \\ x = \frac{r {}^{2} - u {}^{2} }{2a}$

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