Question

factorise 441a²-900b²​

Answer 1

Answer:

Hlo! hope you are fine . Have a great day .

Answer 2

The answer is = (21a - 30b)(21a + 30b)

Step-by-step explanation:

$441a²-900b² = {(21a)}^{2} - {(30b)}^{2} \\ \\ = = > \: \: \: = (21a - 30b)(21a + 30b)$

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Used Identity:-

${a}^{2} - {b}^{2} = (a - b)(a + b)$

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