Question

7 squared + x squared = 14 squared

Answer 1

12.1 rounded to the nearest tenth.

Explanation:

`7^(2) +x^(2) = 14^(2)`
`7^(2)` means 7x7 = 49;
`14^(2)` means 14x14 = 196

49 +
`x^(2)` = 196 Subtract 49 from both sides of the equation

`x^(2)` = 147

`\sqrt{x^(2) }` =
`√(147)`

x =
`√(147)` This would be the exact answer.

12.1 is your answer rounded to the nearest tenth

Answer 2

x = 12.1243557....

Explanation:

14² = 7² + x²

Isolate x.

x² = 14² - 7²

x² = 196 - 49 = 147

√x² = √147

x = √147 = 12.1243557....