Question

35a2b2 + 15ab2 – 45ab

Answer 1

$70ab^{2} + 15ab \: \times 2 \: - 45ab \\ 7ab^{2} + 30ab - 45ab \\ 70ab^{2} + (30ab \: - 45ab) \\ 70ab ^{2} - 15ab$

Suerte y éxitos!