SOLUTION: I have tried to figure these problems out can someone please help me Thanks. (5a^3 - 4a^2) + (4a^3 + 9a^2)

SOLUTION: I have tried to figure these problems out can someone please help me Thanks. (5a^3 - 4a^2) + (4a^3 + 9a^2)

Algebra.Com

Question 330214: I have tried to figure these problems out can someone please help me Thanks.
(5a^3 - 4a^2) + (4a^3 + 9a^2)
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Gather like terms,

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