Question

factorise 1-25(a+b)^2​

Answer 1

$1 - (5(a + b)) ^{2} \\ (1 + 5a +5 b)(1 - 5a - 5b)$

Answer 2

Answer:

(5a + 5b + 1)(1 - 5a - 5b)

Step-by-step explanation:

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

a^2 = 1

a=1

b^2 =25(a+b)^2

b= 5(a+b)