Question

Помогите,плиз,спасибо!

Answer 1

Ответ:

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7q(5p + 3q) - 2p(5p + 3q) = (7q - 2p)(5p + 3q)

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Answer 2

35pq-10p²+21q²-6pq=

=(35pq+21q²)+(-10p²-6pq)=

=7q(5p+3q)-2p(5p+3q)=

=(7q-2p)(5p+3q)