# Math Help - Polynomial proof help.

1. ## Polynomial proof help.

Show that if P(t), Q(t) and R(t) are real polynomials then P(t)(Q(t)+R(t)) = P(t)Q(t) + P(t)R(t)

2. Originally Posted by bluebiro
Show that if P(t), Q(t) and R(t) are real polynomials then P(t)(Q(t)+R(t)) = P(t)Q(t) + P(t)R(t)

Using what concepts and theorems? I would just say that, for each t, P(t), Q(t), and R(t) are real numbers and apply the distributive law for real numbers.

3. Originally Posted by HallsofIvy
Using what concepts and theorems? I would just say that, for each t, P(t), Q(t), and R(t) are real numbers and apply the distributive law for real numbers.
I didn't think of that, as we've been learning the distributive laws in Stats, but I don't see why that wouldn't work. Thanks!