Question

149 square + 2 into 149 into 51 + 51 square

Answer 1

149²+2(149)(51)+51²

=> this can be written as (149+51)²

as => a²+b²+2ab = (a+b)²
(here, a = 149 and b = 51)


so , 149²+2(149)(51)+51² = (149+51)²

=> (200)² => 200×200 => 40000

hope this helps

Answer 2

149 square = 22201.

2 x 149 x 51 + 51 x 51 = 17799.

22201 + 17799 = 40000