Question

Factorise 25a²–16b² I need Step by step explanation​

Answer 1

Answer:

25a² is (5a)²

16 b² is (4b)²

therefore

(5a)²-(4b)²

using the identity a²-b² = (a+b) (a-b)

(5a+4b) (5a-4b)

Answer 2

Answer:

369

Step-by-step explanation:

Question

Factorise 25a²–16b²

By the formula of Algebra

a² - b² = (a + b) (a - b)

Values:

a = 25

b = 16

Solution:

a² - b² = (a + b) (a - b)

(25 + 16) (25 - 16)

41 × 9

369

369 is the Answer.