Question

(i) 49a2 + 70ab + 2562​

Answer 1

Answer:

(7a+5b) ^ 2

Step-by-step explanation:

First we split the middle term that is 70ab.

This is split into 35ab and 35ab.

Now,

=> 49a^2+35ab+35ab+25b^2

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

=> ( 7a + 5b ) + ( 7a + 5b ) or (7a+5b)^ 2