Question

9. Factorize 81q²-16c²​

Answer 1

Answer:

(9q - 4c)(9q + 4c)

Step-by-step explanation:

81q²-16c²​

(9q)² - (4c)²

use: a² - b² = (a + b)(a - b)

(9q - 4c)(9q + 4c)