Question

Express
9 a² - 16b² as
product of factors

Answer 1

Answer:

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Step-by-step explanation:

ANSWER ::

9a² - 16b²

= ( 3a) ² - (4b)²

= ( 3a + 4b) ( 3a - 4b)

Answer 2

Answer:

( 3a-4b )( 3a+4b )

Step-by-step explanation:

9a² - 16b²

= (3a)² - (4b)²

Using the identity: a²-b² = (a-b)(a+b)

= (3a-4b)(3a+4b)