Question

What is the value of the expression below when w = 3?3w² - 6w - 4

Answer 1

5

Explanation:

We have the following expression:

`3w^2-6w-4\:`

We substitute the value of w, when it is equal to 3, just like this:

`\begin{gathered} 3\left(3\right)^2-6\left(3\right)-4\: \\ \\ 3\cdot \:9-6\left(3\right)-4 \\ \\ 27-18-4 \\ \\ 5 \end{gathered}`

The value of the expression is equal to 5