Question

3. Evaluate the expressions and simplify if possible:a) x^2+x-5 for x=-4

Answer 1

Given data:

The given expression is x^2+x-5

The given value of x is x= -4.

Substitute -4 for x in the above expression.

`\begin{gathered} (-4)^2+(-4)-5=16-4-5 \\ =7 \end{gathered}`

Thus, the value of given expression is 7.