Question

(a -3b)(a+3b)(a²+9b²)​

Answer 1

Answer:

This is your answer in figure..

Hope it helps..

Answer 2

$\large{explanation}$

given

$(a - 3b)(a + 3b)(a {}^{2} + 9b {)}^{2}$

solving using

$(a + b)(a - b) = a {}^{2} - b {}^{2}$

then

$(a {}^{2} - 9b {}^{2} )(a {}^{2} + 9b {}^{2} )$

$(a {}^{2} ) {}^{2} - (9b {}^{2} ) {}^{2}$

$a {}^{4} - 81b {}^{4}$

$\large{vergilmustdie}$