Question

pls answer all the questions

Answer 1

Step-by-step explanation:

A part

$( - 15x + 6y) - (10x + 7y) = - 15x + 6y - 10x - 7y = - 25x - y$

B part

$2pq(p + q) - 3pq(p - q) = 2 {p}^{2} q + 2p {q}^{2} - 3 {p}^{2} q + 3p {q}^{2} = 5p {q}^{2} - {p}^{2} q$

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Answer 2

Step-by-step explanation:

‐15x+6y ‐ 10x+7y

= ‐25x +13y

2pq(p+q) ‐ 3pq(p‐q)

= 2p^2q^2 ‐ 3p^2q^2

= ‐1p^2q^2