Question

25(2a+3b)^2-1 factorise

Answer 1

Step-by-step explanation:

(5(2a+3b))² - 1²

=(10a +15b +1)(10a+15b -1)

Answer 2

Answer:

Question :-

➠ 25(2a + 3b)² - 1

Formula used :-

➪ a² - b²

➭ (a + b) (a - b)

Answer :-

➠ 25(2a + 3b)² - 1

➻ {5(2a + 3b)}² - (1)²

➻ (10a + 15b)² - (1)²

➻ (10a + 15b + 1) (10a + 15b - 1)

∴ The value of 25(2a + 3b)² - 1 is (10a + 15b + 1) (10a + 15b - 1)