Question

factorise 49a^2+70ab+25b^2​

Answer 1

Just refer to the pics and u will understand..

@lonely feeeel

Answer 2

Answer:

here you can see that

49a^2 = (7a)^2 , 25b^2 = (56)^2 , 70ab = 2(7a) (5b)

Comparing the given expression with x^2 + 2xy + y^2

we observed that x = 7a and y = 5b

Using Identity 1 , we get

49a^2 + 70ab + 25b^2

= ( 7a + 5b )

= ( 7a + 5b ) ( 7a + 5b )