Question

find the square.. (8m+7)^2

Answer 1

The answer is
64m^2 + 112m + 49

Answer 2

STEPS :

(8m + 7) ^ 2  
Apply distributing rule : (a + b)^2 = a^2 + 2ab + b^2

= (8m)^2 + 2 ⋅ 8m ⋅ 7 + 7^2
   (8m)^2 = 64m^2
   2 ⋅ 8m ⋅ 7 = 112m
   7^2 = 49

= 64m^2 + 112m + 49

Hope this helps :)