Review question

# If this cubic has two equal roots, what can $p$ be? Add to your resource collection Remove from your resource collection Add notes to this resource View your notes for this resource

Ref: R5196

## Question

A polynomial $f(x)$ has a factor $(x-a)^2$. Show that $(x-a)$ is a factor of $f'(x)$.

The equation $x^3 - 4x^2 - 3x + p = 0$ has two equal roots; find the two possible values of $p$.