Question

If g(x) = x2 – 4, find g(5).
6
О
14
21
O
29

Answer 1

`\tt \: g(x) = {x}^(2) - 4`

Substitute the value of x as 5 (given) in the above equation. The equation changes too..

`\tt \: g(5) = {5}^(2) - 4`

Now you can easily solve the equation.

`\tt \: g(5) = {5}^(2) - 4 \\\tt g(5) =( 5 * 5) - 4 \\ \tt \: g(5) = 25 - 4 \\ \tt \: g(5) = 21`

Answer -
`\boxed{\sf{21}}`

Answer 2

`\boxed{ \sf{Answer}}`

`\sf \: g(x) = {x}^(2) - 4 \\ \\ \sf \: x = 5 \\ \\ \sf \: g(5) = {5}^(2) - 4 \\ \sf \: g(5) = 25 - 4 \\ \sf \: g(5) =\underline 2\underline1`

Answer ↦21 [Option C]