Question

(a + 3) (a - 3) (a² + 9)​

Answer 1

Answer:

(a²- 3²)(a² + 3²) = a⁴ - 3⁴

Step-by-step explanation:

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Answer 2

$\huge\red{\boxed{\green{\mathbb{\overbrace{\underbrace{\fcolorbox{pink}{red}{\underline{\pink{♡♡a⁴-3⁴♡♡}}}}}}}}}$

→ (a + 3)(a - 3)(a²+9)

→ (a²-3²)(a²+9)

→ (a²-9)(a²+9)

→ a⁴-3⁴