SOLUTION: How would I go about multiplying this? (2s + 5z)^2(s + 3z)^2

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Question 64068: How would I go about multiplying this?
(2s + 5z)^2(s + 3z)^2
Answer by stanbon(57953) About Me  (Show Source):
You can put this solution on YOUR website!
(2s + 5z)^2(s + 3z)^2
Square each binomial to get two trinomials, as follows:
= (4s^2+20sz+25z^2)(s^+6sz+9z^2)
NOw multiply each term of the 1st trinomial times each term of the 2nd trinomial; add the similar terms; that process I'll leave to you.
Cheers,
Stan H.