Explanation:
-30a^5 b+12a^4b^3 +6a^3b^2+10a^3b^2-4a^2b^4 -2ab^3
-30a^5 b+12a^4b^3 +16a^3b^2-4a^2b^4 -2ab^3
option 2 is the answer
Answer:
the second choice
the first two items are -6a^3b , 5a^2
when multiplied it is -30a^5b
ONLY THE SECOND ONE HAS THAT IN THE ANSWER
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