Question

32m²+16m - 2.(4m +1)²

Answer 1

32m²+16m - 2.(4m +1)²
32m²+16m- 2(16m²+8m+1)
32m²+16m-(32m²+16m+2)
32m²+16m-32m²-16m-2
32m²-32m²+16m-16m-2
-2

Answer 2

$32 m^{2} +16m-2(16m^2+8m+1) \\ \\ 32 m^{2} +16m-32m^2-16m-2) \\ \\ 32 m^{2} -32m^2+16m-16m-2) \\ \\ -2$