Question

factorise
4a²-9b²-2a -3b
​

Answer 1

Answer:

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Expand :

(a+3b+4c)^2

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Answer 2

Answer:

Question :-

➠ 4a² - 9b² - 2a - 3b

Formula used :-

➪ a² - b²

➭ (a + b) (a - b)

Answer :-

➠ 4a² - 9b² - 2a - 3b

➻ (2a)² - (3b)² - (2a + 3b)

➻ (2a + 3b) (2a - 3b) - (2a + 3b)

➻ (2a + 3b) {(2a - 3b) - 1} [Taking 2a + 3b common]

➻ (2a + 3b) (2a - 3b - 1)

∴ The value of 4a² - 9b² - 2a - 3b is (2a + 3b) (2a - 3b - 1)