Question

4. Tous - (Factorize): 81x2-144y?​

Answer 1

Use the identity a²-b²=(a-b)(a+b)

$Given:\\81x^{2}-144y^{2}\\= (9x)^{2}- (12x)^{2}\\= (9x-12y)(9x+12y) [\,\because a^{2}-b^{2}=(a-b)(a+b)]$

Final answer: (9x-12y)(9x+12y)

Hope this helps! Please mark as Brainliest!