Question

Помогитеее быстрееее!!!

Answer 1

$\\4 {m}^{2} - 10mn + 6mn - 15 {n}^{2} = 4 {m}^{2} - 4mn - 15 {n}^{2} \\ 3 {x}^{2} - 3xy + 2xy - 2 {y}^{2} = 3 {x}^{2} - xy - 2 {y}^{2} \\ 10 {b}^{2} - 10bc - 8bc + 8 {c}^{2} = 10 {b}^{2} - 18bc + 8 {c}^{2} \\ 8 {p}^{2} + 5pq - 24pq - 15 {q}^{2} = 8 {p}^{2} - 19pq - 15 {q}^{2}$