Question

(a+3)(a-3)(a²+9) this is my question​

Answer 1

Answer:

your answer is 2a×a²+9

Answer 2

$\huge{\underline{\mathfrak{Answer:-}}}$

(a+3)(a-3)(a²+9)

By identify,a²-b² = (a+b)(a-b)

[a²-3²] (a²+9)

(a²-3²)(a²+3²)

Again by the same identity,

(a⁴-3⁴),(a⁴-81)

= a⁴-81

hope this helps you