Question

Evaluate the expression when y= -2 . y^2 +6y-4

Answer 1

-12

Step-by-step explanation:

Given the expression:

`y^2+6y-4`

To evaluate the expression when y=-2, we substitute for y.

`\begin{gathered} y^2+6y-4 \\ =(-2)^2+6(-2)-4 \end{gathered}`

We can then simplify further:

`\begin{gathered} =4-12-4 \\ =-12 \end{gathered}`

The value of the expression when y=-2 is -12.