Question

factorise the expression 9m² – 64² using an appropriate identity​

Answer 1

Step-by-step explanation:

(3m+8)(3m-8)

hope it'll help you please make it brainliest answer

Answer 2

Answer:

(3m+64)(3m-64)

Step-by-step explanation:

Given -

9m² - 64²

To find -

Factorise the above equation using an appropriate indentity

Solution -

9m² - 64²

= 3×3m² - (64)²

= 3²m² - (64)²

= (3m)² - (64)²

= (3m+64)(3m-64)

[by (a²-b²) = (a+b)(a-b)]

Hence 9m² - 64² = (3m+64)(3m-64).

hope it helps.