Question

find the square of 35 by(a+b) square=a square+20b+ b square​

Answer 1

Step-by-step explanation:

We can divide 35 as 30 + 5

If 30 is taken as a and 5 is taken as b then,

( 30 + 5 ) square = 30 square + 2×30×5 + 5 square

= 900 + 300 + 25

= 1225

Therefore, 35 square = 1225