Question

Evaluate the expression. $$y^{3}-4 \text { when } y=-2$$

Short answer

The evaluated expression is -12.

Step-by-step solution

Substitute y with -2

Now, substitute -2 for \(y\) in the expression \(y^{3}-4\). This gives us \((-2)^{3}-4\).

Simplify the equation

The next step is to simplify the equation. Notice that \((-2)^{3} = -8\). Therefore the expression becomes \(-8-4\).

Calculate Final Answer

Finally, if we continue the simplification, the equation results to -12.