Question

Evaluate the given expression at x= -4
-3x + 2x^2 + 2

Answer 1

46

Explanation:

-3(-4)+2(-4)^2+2

Answer 2

`\huge{ \boxed{ \bold{ \text{46}}}}`

Explanation:

If the value of variables of algebraic expression are given, the value of the term or expression can easily obtained by replacing the variables with numbers.

`\text{ \underline{ Given}} : \text{x = - 4}`

`\text{ \underline{ To \: find}} : \sf{value \: of \: - 3x + 2 {x}^(2) + 2}`

`\text{ Plug \: the \: value \: of \: x}`

`➝ \: \sf{ - 3 * (- 4 )+ 2 *  {( - 4)}^(2) + 2}`

➝
`\sf{12 + 2 *  {( - 4)}^(2) + 2}`

`\text{Evaluate \: the \: power}`

➝
`\text{12 + 2 * 16 + 2}`

`\text{Multiply \: the \: numbers}`

➝
`\text{12 + 32 + 2}`

`\text{Add \: the \: numbers}`

`➝ \boxed { \text{46}}`

`\text{Hope \: I \: helped!}`

`\text{Best \: regards!}`

~
`\text{TheAnimeGirl}`