Question

find
square 82 using
(a+b) ² = a ² + b ² + 2ab
the
poperty​

Answer 1

Step-by-step explanation:

(80+2) whole square = 80 square +

2 square + 2×80×2 =1600+4+320 =1924

Answer 2

Answer:

80+2

(80+2) ^2=80^2+2^2+2x80x2

6400+4+320

6724