Math, asked by somali5353das, 1 day ago

Factorise the following algebraic expressions:
(i) 9x ^ 2 - 121
(ii) 9x ^ 2 - 4y ^ 2

Answers

Answered by papita778911

1

Answer:

(i) 9x² - 121

= (3x)² - 11²

= (3x - 11) (3x + 11) (Answer)

(ii) 9x² - 4y²

= (3x)² - (2y)²

= (3x - 2y) (3x + 2y) (Answer)

Answered by vishwajeetsahani

1

Answer:

(i) 9x² - 121

= (3x)² - 11²

= (3x - 11) (3x + 11) (Answer)

(ii) 9x² - 4y²

= (3x)² - (2y)²

= (3x - 2y) (3x + 2y) (Answer)

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