Question

`{x}^(2) + {11}^(2) = {22 }^(2)`


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Answer 1

See image below.

I'm not 100% sure if this is allowed or not, someone please let me know if it is not.

Explanation:

See image below

Answer 2

± 11
`√(3)`

Explanation:

Given

x² + 11² = 22², that is

x² + 121 = 484 ( subtract 121 from both sides )

x² = 363 ( take the square root of both sides )

x = ±
`√(363)` = ±
`√(121(3))` = ± 11
`√(3)`