Question

Let p(x) = x² + x and q(x) = x² + 3x.P(x) – q(x) =

Answer 1

Substract the expressions for P(x) and Q(x).

Substract like terms, which are the terms that have the same variable raised to the same power.

For this case, substract x^2 from x^2 and 3x from x:

`\begin{gathered} x^2+x-(x^2+3x) \\ x^2-x^2+x-3x \\ -2x \end{gathered}`

It means that the answer is -2x.