Question

3p . (2+k) = 6p + 3pk

Answer 1

$3p* (2+k) = 6p + 3pk$

Subtract $6 p + 3 pk$ from the both sides:

$3p(2+k) -(6p+3pk) = 6p+3pk-(6p+3pk)$

$= 3pk(2+k) - 6p-3pk = 0$

Factor $3p(2+k) - 6p - 3k$

Factor out common term $3p$

$= 3p(k-k+2-2)$

refine:

$0 = 0$

true for all $p$

hope this helps!