# Math Help - Counting Problems

1. ## Counting Problems

Find the number of terms in the expansion of (x+y+z+2w)^12.

2. Originally Posted by LAURA.GOODMAN
Find the number of terms in the expansion of (x+y+z+2w)^12.
any term is of type $x^a.y^b.z^c.w^d$
constraint a+b+c+d = 12
where each can take value for [0,12]

Can you now solve it?

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