Question

a) Find the product using suitable identity. (a + 3) (a - 3) (a2 + 9)​

Answer 1

Answer:

Solution :-

✪ (a + 3) (a - 3) (a² + 9)

➞ a(a - 3) + 3(a - 3) (a² + 9)

➞ (a² - 3a + 3a - 9) (a² + 9)

➞ (a² - 9) (a² + 9)

➞ a²(a² + 9) - 9(a² + 9)

➞ a⁴ + 9a² - 9a² - 81

➞ a⁴ - 81

∴ The answer of this question is a⁴ - 81

Answer 2

Step-by-step explanation:

Hope this answer helps you !!!!!