Question

factorise (25x square -1 ) + (1+5x)square​

Answer 1

Answer:

25x2-1 can be written as (5x+1)(5x-1) because this is forming an identity :-

a2-b2=(a+b)(a-b)

now:-

(5x+1)(5x-1)+(1+5x)2

[taking (1+5x) common]

(5x+1)[(5x-1)+(5x+1)]

(5x+1)[5x-1+5x+1]

(5x+1)(10x)_________1) answer

or

50x2+10x___________2) answer

Answer 2

Answer:

(5x)sq_(1)sq+(5x+1)sq

(5x+1)(5x_1)+(5x+1)sq

(5x+1){(5x_1)+(5x+1)}

(5x+1){5x_1+5x+1}

10x(5x+1)