Question

What is this?? i will give extra points

Answer 1

`\gg{ \underline{ \large \: \boxed { \bf {- 14}}}}`

Explanation:

`\large \: \sf { \underline{Given}}`

• 
  `\sf \: x {}^(2) - 6x - 5`
• 
  `\sf \: x = 3`

`\large \sf \underline{Solution }`

`\large \: \displaystyle \sf {x}^(2) - 6x - 5`

`\: \: \: \: \: \: \: \: \: \: \: \large \bf \blue{ \underline{putting \: the \: value \: of \: x}}`

`\large \: \displaystyle \sf \: {3}^(2) - 6(3) - 5`

`\large \: \displaystyle \sf \: = \: 9 - 18 - 5`

`\large \: \displaystyle \sf \: = \: - 9 - 5`

`\large \: \displaystyle \bf \red{= - 14}`

Answer 2

SolutioN:-

↬ x² - 6x -5

Substituting x = 3:-

⟶ x² - 6x -5

⟶ (3)² - 6(3) -5

⟶ 9 - 6 × 3 - 5

⟶ 9 - 18 - 5

⟶ 9 - 23

⟶ -14