factor: v squared - v -2

1 answer

To factor the expression \( v^2 - v - 2 \), we need to find two numbers that multiply to \(-2\) (the constant term) and add to \(-1\) (the coefficient of the \(v\) term).

The numbers \(-2\) and \(1\) work because:

  • \(-2 \times 1 = -2\)
  • \(-2 + 1 = -1\)

Using these numbers, we can rewrite the expression:

\[ v^2 - v - 2 = (v - 2)(v + 1) \]

So the factored form of \( v^2 - v - 2 \) is:

\[ (v - 2)(v + 1) \]