Question

Factories:
(i) 49 p²-81​

Answer 1

Answer:

(7p)² - (9)²

so this is the formula of a²-b² = (a+b) (a-b)

(7p+9) (7p-9)

here's your answer

Answer 2

Question

Factories:

(i) 49 p²-81

Answer

• ⇒49 p²-81
• ⇒(7p)² - (9)²
• ⇒(7p - 9)²
• ⇒(7p - 9)(7p + 9) Ans

Formula used:

• a² - b² = (a² - b²)(a² + b²)