Evaluate x^(2) + 8 if x = 5

Question

Evaluate
`x^(2)` + 8 if x = 5

Answer 1

Answer: 33.

We are given the following:

• X = 5

We are tasked with the following:

• Evaluate
  `x^2+8`

This question involves a simple plugging in. Since X = 5, we have to plug in this number to where the x would be, giving us the equation of
`5^2+8`

5*5 (since the
`^2` implies squaring) = 25 and 25+8 = 33.

The answer is
`x^2+8=33.`

Answer 2

33

Explanation:

Key Info

When evaluating an expression, plug in the value of the variable & evaluate.

`\hspace{370}\above0.3`

Our expression is:

`\sf{x^2+8}`

Substitute 5 for x:

`\sf{5^2+8}`

`\sf{25+8}`

`\sf{33}`

Therefore, the answer is 33.