Question

- x²+ 2x + 4 if x is -5​

Answer 1

If x=-5
-(-5)^2+2(5)+4
-(25)+10+4
-25+14
-11

Answer 2

Given :

An expression $-x^{2} +2x+4$ where $x=-5$

To find :

The value of the given expression.

Step-by-step explanation:

• The value of the given expression can be found by following these steps.

• Substitute the value of $x$ in the given expression.

       $-(-5)^{2} +2(-5)+4$

• Remove the brackets.

       $-25-10+4$

• Sum it all up.

       $-31$

Final answer :

The value of $-x^{2} +2x+4$ when $x=-5$ is $-31$.