Question

FACTORISE -25A^2-4B^2+28BC-49C^2 FULL EXPLANATION

Answer 1

Answer:

Question :-

➪ 25a² - 4b² + 28bc - 49c²

Solution :-

➪ 25a² - 4b² + 28bc - 49c²

➭ 25a² - (4b² - 28bc + 49c²)

➭ 25a² - {(2b)² - 2 × 2b × 7c + (7c)²}

➭ (5a)² - (2b - 7c)²

➭ (5a + 2b - 7c) (5a - 2b + 7c)

∴ The value of 25a² - 4b² + 28bc - 49c² is

(5a + 2b - 7c) (5a - 2b + 7c)

Answer 2

Step-by-step explanation:

qyd-wowd-xbz

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