
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Given that A=2a²b-ab², B=-a²b+2ab².
(1) Find 5A+4B;
(2) If |a+2|+(3-b)²=0, find the value of 5A+4B;
(3) Express a²b+ab² using the formulas for A and B.

Present the answer in LaTex format: \boxed{Your answer}
user