Math, asked by tanujagautam107, 10 months ago

factorize:1. x^2- 81
2. 9a^2-25

Answers

Answered by rajnitiwari192003

2

Answer:

identity used - a²-b² = (a+b)(a-b)

1.)x² - 81

x² - (9)²

(x+9)(x-9)

2.)9a² - 25

(3a)²-(5)²

(3a+5)(3a-5)

Answered by Ranveerx107

25

Answer:

Step-by-step explanation:

1.)x² - 81

x² - (9)²

(x+9)(x-9)

2.)9a² - 25

(3a)²-(5)²

(3a+5)(3a-5)

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