Question

Factorise.. 25a sq. - 9b sq. please tell the answer​

Answer 1

Answer:

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

Step-by-step explanation:

Given,

${25a}^{2} - {9b}^{2}$

$= {(5a)}^{2} - {(3b)}^{2}$

Since,

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

Then,

= (5a + 3b)(5a - 3b) (Ans)