Answer
(5$z^{2}$ - 2x)(4 + p)
Work Step by Step
1. Group like terms together.
(20$z^{2}$ + 5p$z^{2}$) + (-8x - 2px)
2. Factor out GCF from each group.
5$z^{2}$(4 + p) - 2x(4 + p)
3. Use distributive property to factor.
(5$z^{2}$ - 2x)(4 + p)