Question

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

Answer 1

Answer:

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

Step-by-step 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.

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

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

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

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

$\text{Remember!} : \text{Multiplying \: a \: negative \: integer \: by \: negative \: integer \: gives \: a \: positive \: integer.}$

➝$\sf{12 + 2 *  {( - 4)}^{2} + 2}$

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

➝$\text{12 + 2 * 16 + 2}$

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

➝$\text{12 + 32 + 2}$

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

$➝ \boxed { \text{46}}$

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

$\text{Best \: regards!}$

~$\text{TheAnimeGirl}$

Answer 2

Answer:

46

Step-by-step explanation:

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