Question

find the products (3a square b - 2b + 3c) (12 a square b + 3 C - 2D)

Answer 1

$36a^{4}b^{2} + 45a^{2}bc - 6 {a}^{2}bd - 24{a}^{2}{b}^{2} - 6bc + 2bd + 9{c}^{2} - 6cd$
34 a power 4 b square + 45 a square B C - 6 a square b d -24 a square B square - 6 BC + 2 BD + 9 c square - 6 CD