Question

. *Resolve
1. x² - 16
2. x² + 4
3. 4x² - 4y²
4. 25a² - 36b²​

Answer 1

Answer:

65 is your answer ............

Answer 2

Answer:

1. (x^2 - 4^2)

Using a^2 - b^2 identity

answer is (x+4) (x-4)

3.4x^2 -4y^2 can be also written as-

={(2x)^2 - (2y)^2}

Using the identity above the ans is-

(2x+2y) (2x-2y)

4.25a^2 -36 b^2 can be also written as-

={(5a)^2-(6b)^2}

={a^2-b^2=(a+b)(a-b)}

=(5a+6b)(5a-6b)