
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 the function $f(x)=|x-2|+|x+3|$, where $x\in R$.
(1) Find the solution set of the inequality $f(x)\leqslant x+5$;
(2) If the inequality $f(x)\geqslant a^{2}+4a$ holds for all $x$ in $R$, find the range of values of the real number $a$.

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