Simplify (a+3³) - (a-3³) – InterviewSolution

1.	Simplify (a+3³) - (a-3³)
Answer» Step-by-step explanation: We get: (a+3)3+(a−3)3 ⇒(a3+3a2⋅3+3a(3)2+(3)3)−(a3−3a2⋅3+3a(3)2−(3)3) ⇒a3+9a2+3a⋅9+27−a3+9a2−3a⋅9+27 ⇒18a2+27 ⇒9(2a2+3) ~HOPE this HELPS! :)

Simplify (a+3³) - (a-3³)

Answer»

Step-by-step explanation:

We get:

(a+3)3+(a−3)3

⇒(a3+3a2⋅3+3a(3)2+(3)3)−(a3−3a2⋅3+3a(3)2−(3)3)

⇒a3+9a2+3a⋅9+27−a3+9a2−3a⋅9+27

⇒18a2+27

⇒9(2a2+3)

~HOPE this HELPS! :)

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Simplify (a+3³) - (a-3³)​

(a+3)3+(a−3)3

⇒9(2a2+3)

~HOPE this HELPS! :)

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Simplify (a+3³) - (a-3³)