Question

(6m+5n) 2 square +(6m-5n)2 square... simplify ... wanna be brainalist

Answer 1

(6m+5n)² + (6m-5n)²,

(36m²+25n²+60mn) + (36m²+25n²-60mn),

then

36m²+25n²+36m²+25n²,

72m²+50n²

Answer 2

(6m+5n)^2+(6m-5n)^2
(6m+5n+6m-5n)^2-2{(6m+5n)(6m-5n)}
144m^2-2(36m^2-25n^2)
144m^2-72m^2+50n^2
72m^2+50n^2