Question

b^2 + 12b + 32

Answer 1

(b+8)(b+4)

Answer 2

\[b ^{2}+12b+32=0\]
\[(b+4)(b+8)=0\]
\[b+4=0 \to b=-4\]
\[b+8=0 \to b=-8\]

Answer 3

ok